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O,O-Diethyl-S-Tert-Butylthiomethyl Dithiophosphate: A Down-to-Earth Editorial Commentary

Tracing the Legacy: Historical Development

Replay the twentieth century’s green revolution and you will run into a parade of organophosphorus compounds making waves in science, industry, and agriculture. O,O-Diethyl-S-Tert-Butylthiomethyl Dithiophosphate stands among their ranks, and its story links tightly with breakthroughs in pest management and industrial lubrication. Researchers pushed the organophosphorus chemistry frontier forward to unlock compounds that tackle old world problems: protecting crops from relentless bugs and keeping industrial machines humming. By the 1970s, as farming went industrial, the need for compounds balancing high reactivity with selectivity grew urgent. Chemists working in universities and corporate labs sifted through endless molecular combinations, aiming for a substance that can pack a punch but with manageable toxicity and environmental persistence. Out of this grind, the molecule gained attention for the way it could be manipulated and adapted, proving itself more than a one-trick chemical.

Peeling Back the Layers: Product Overview

If you lay out the profile of O,O-Diethyl-S-Tert-Butylthiomethyl Dithiophosphate, you won’t confuse it for your run-of-the-mill agrochemical. Picture a clear to pale yellow liquid, not remarkable at a glance but significant to industries that depend on breakdown resistance and targeted reactivity. You find this molecule at the intersection of performance lubricant additives and pesticide formulations. It heads into manufacturing plants packed with rotating steel, and marches into fields where precision counts for keeping the food supply steady. What makes this compound useful boils down to its core structure—those phosphorus, sulfur, and oxygen bonds do the heavy lifting.

Physical and Chemical Properties: No Smoke, Just Substance

Talk about physicality and you’ll see a liquid with a moderate vapor pressure, something that volatilizes more slowly than solvents but with enough mobility to spread where it’s needed. Water solubility sits low, so it doesn’t run off as easily, keep it stable where it goes down. Chemically, that phosphorus backbone is reactive, especially around sulfur and oxygen: it steps up for complex formation, chelation, and sometimes hydrolysis. The tert-butyl group adds a protective cushion, blocking off easy breakdown and boosting thermal stability—a practical win for industries that don’t want products falling apart under stress. Acidic or basic conditions can prod it into splitting, and organophosphate reactivity nearly always demands respect, but this molecule takes what the environment throws at it a bit better than less protected cousins.

Technical Specs and Labeling: More Than Numbers

In the trenches of lab work and heavy industry, consistency and clear info matter. Chemists and safety officers alike look for CAS numbers, molecular weights, and purity grades in every shipment, avoiding surprises. For O,O-Diethyl-S-Tert-Butylthiomethyl Dithiophosphate, technical grades skim past 95% purity. Storage drums bear warning labels detailing toxicity, environmental risks, and requirements for gloves and goggles—not just because regulators demand it but because field experience shows incidents happen when people don’t take care. You’ll also find details about compatibility, shelf life, and special handling so nobody runs into trouble during transport or mixing. In my own lab experience, clarity up front—right on the label—makes or breaks a project or workday.

Preparation Method: Where Chemistry Gets Real

The way this compound comes together looks emblematic of organophosphorus chemistry. The backbone usually forms by reacting diethyl phosphorodithioic acid chloride with a tert-butylthiomethylating agent, almost always under a dry, inert atmosphere to block out water. In one step, you see chlorides bubbling away and chemists watching reaction temps so side reactions don’t wreck the batch. No legend here—this stuff takes patience, a fume hood, and a steady hand. The reaction relies on careful stepwise control; uncontrolled reaction ruins yield and creates all kinds of byproduct headaches. I remember a colleague once being on the wrong end of a runaway batch—no injuries, but weeks of cleanup and lessons learned about slow, careful additions and double-checking glassware.

Chemical Reactions and Modifications: Versatility on Demand

Once synthesized, O,O-Diethyl-S-Tert-Butylthiomethyl Dithiophosphate doesn’t just sit on the shelf. In research, chemists tweak the molecule for different uses—a little less sulfur here, a different alkyl group there—to tune properties like oil solubility or target specificity. The versatility comes from the P=S and S–tBu bonds, both of which can take part in reactions forming metal complexes, increasing reactivity for certain pests, or preparing derivatives for even greater breakdown stability. I’ve watched industry teams modify this backbone to meet stricter emission standards, showing how applied chemistry keeps up with regulation and performance needs. On paper, the chemistry gets deep fast—but in practice, every little shift in the recipe opens the door to significant advantages or drawbacks depending on the intended use.

Names and Identity: Synonyms in the Field

The chemical world rarely moves without a maze of names and codes. Walk into any lab, and you’ll hear trade names, register numbers, and old-school nicknames—all for the same compound. O,O-Diethyl-S-Tert-Butylthiomethyl Dithiophosphate has a few: sometimes just “organodithiophosphate ester” gets thrown around, or more precise synonyms depending on manufacturer or regulatory labels. Check the MSDS or the safety sheets and you’ll see the full IUPAC mouthful, but technicians pass “tBu-thiomethyl DTP” back and forth over workplace benches. It pays to know your names, especially when similar-sounding compounds pack very different risks.

Safety and Operations: No Corners to Cut

Decades in the chemistry world taught me that every shortcut in safety and operations gets someone in trouble eventually. With organophosphorus compounds broadly, you deal with substances that can hit nerve function and environmental health—no product is worth a trip to the emergency room. O,O-Diethyl-S-Tert-Butylthiomethyl Dithiophosphate lands as “moderate risk” on many toxicity charts, but everyone in the industry treats it with the highest level of respect. Proper PPE—goggles, gloves, and a lab coat—goes hand-in-hand with solid ventilation. In industrial uses, engineers build in spill containment, routine leak checks, and antidote access not because it looks good for compliance, but because history writes the consequences in bold. From labs to warehouse floors, safety trainings drill home the real risks, never as a box-ticking exercise but as a life-or-death necessity.

Application Area: Real-World Impact

The value of O,O-Diethyl-S-Tert-Butylthiomethyl Dithiophosphate lies in practical performance. In the agricultural sector, it edges into pesticide formulations. Not only does it knock down select pests, but its stability and reactivity mean it hangs on in the field just long enough to get the job done before breaking down—a tough line to toe. Industrial chemists put it to work as a core additive for wear-reducing lubricants; those phosphorus-sulfur moieties build a protective film on metal, pushing back against friction and corrosion. For years, the automotive world depended on compounds like this to extend gear life and keep moving parts in check. The scope keeps expanding where fine-tuned control over chemical breakdown or selective metal interaction comes needed: mining, oil refining, synthetic intermediate production. Every new application grapples with the balance between performance, safety, and environmental risk.

Following the Science: Research & Development

Research on O,O-Diethyl-S-Tert-Butylthiomethyl Dithiophosphate doesn’t sit still. Universities and companies keep pouring time into finding cheaper synthesis routes, safer handling methods, and smarter alternatives. Teams probe its environmental fate, turning out studies on degradation in soil and water, looking for solutions that limit off-target effects. Regulation tightens, and industry has little choice but to stay a step ahead, pushing the molecule’s design to deliver tighter specificity with lower toxicity. I’ve sat in R&D meetings where the goals always spiral back to the “triple bottom line”—it’s not enough to make it cheap and effective, it better be safer for workers and gentler on natural systems. Even in training new chemists, you feel the weight of making progress while respecting the substance’s real-world risks.

Toxicity Research: Drawing the Line

Toxicity defines the ceiling for this compound’s spread. On paper, the molecule sits in an awkward middle: effective but no stranger to risk when mishandled or misapplied. Industry tests—a range from acute oral to dermal LD50 studies—keep piling up. Scientists look out for chronic effects and sublethal impacts on aquatic organisms, tracing breakdown products to catch long-tail environmental harm. Regulatory agencies listen when peer-reviewed data highlights risk to non-target species or water systems. In my circle, collaboration with toxicologists never feels optional. Field experience stacks up: pesticide operators need thorough training, industrial users cycle in fresh PPE and spill response drills, labs run their own regular drills ahead of any big batch handling. Nobody wants their name on the next mishap, and the best defense is embracing the lessons from toxicity data, not wishing them away.

Future Prospects: Walking the Tightrope

The future for O,O-Diethyl-S-Tert-Butylthiomethyl Dithiophosphate reads less like a dying legacy and more like a work in progress. Industry and regulators both press for molecules that do more with less risk, especially as social and environmental scrutiny rises. Next-generation compounds built off this backbone might deliver the high performance needed for critical lubrication or pest control with much lower ecological impact. The chemical’s adaptability fuels hope: maybe a tweak can tip the balance toward safer use, better breakdown in the wild, or even new application fields. Yet, no honest observer can ignore public concern over persistent organophosphorus compounds. Tighter regulations, stronger research partnerships, and a commitment to transparency must pave the way forward. Those working on this molecule today have seen what happens when innovation runs ahead of safety, and they carry these lessons into every new line of R&D. Real progress here will come from honest reckoning with risk, patient advances in synthetic chemistry, and sticking to clear-headed stewardship over legacy and environment.




What is the primary use of O,O-Diethyl-S-Tert-Butylthiomethyl Dithiophosphate?

Understanding Its Main Role

O,O-Diethyl-S-Tert-Butylthiomethyl Dithiophosphate doesn’t get much limelight, but it holds a big spot in the world of industrial lubricants and hydraulic fluids. The main reason for this? Its strong performance as an antiwear and extreme pressure additive. In my time working with mechanical engineers and folks responsible for keeping heavy equipment running, I’ve noticed one constant: machinery stops bringing value when it stops working smoothly. This chemical helps make that happen a lot less often.

Why Machines Need This Compound

Most industrial and automotive oils face tough conditions—high friction, heavy loads, demanding temperatures. Without additives, metals risk welding together. Anyone who’s cracked open a gearbox knows the pain that comes with scorched or scarred components. The structure of O,O-Diethyl-S-Tert-Butylthiomethyl Dithiophosphate allows it to build a protective chemical layer on metal surfaces. Engineers call this a boundary layer, but to workers on the floor, it simply means fewer breakdowns and less downtime.

What Makes It Effective?

The secret sits in its chemistry. It contains phosphorus and sulfur, both proven performers for antiwear and extreme pressure jobs. Once oils get squeezed between gears or bearings, these elements react with the hot, pressured metal to form thin films. These films prevent direct rubbing of metal surfaces. This isn’t wishful thinking—studies published by lubrication societies point out lower friction levels and longer machine life with these additives in the mix. Less friction means less heat, which cuts the risk of oil thickening and keeps moving parts nimble.

Industry’s Interest in Enhanced Protection

Over the years, experts have warned against simply using base oils. Machines run harder, expectations for lifespan rise, and breakdowns cost more—both in cash and lost time. Plant operators want components that last. The U.S. Department of Energy reported that lubrication-related failures contribute to around 40% of industrial breakdowns, so it makes sense to use whatever safe edge you can find. This is where specialized additives step in.

Weighing Risks and Regulation

Of course, not every strong additive deserves a blank check. Regulations covering phosphorus and sulfur emissions have gotten stricter. Engine makers juggle the need for high performance but want shifts toward compounds that don’t foul emission systems or impact the environment. Here, companies have worked to fine-tune formulations—limiting quantities used, switching to cleaner processing, or developing recyclable base stocks. Customer demand for sustainability pushes this work forward.

Moving Toward Smarter Use

Machinery now runs in smarter ways—remote monitoring, predictive maintenance, digital twins. Even so, the basics count. Lubricants still need additives that hold up under pressure, fight wear, and fit into stricter environmental rules. I’ve seen companies get the most from their equipment when they match oil types to their real working environment and service schedules instead of simply going by the book. Data-driven oil analysis also helps track exactly how each additive performs, making tweaks as needed.

Where the Story Goes From Here

Future thinking in lubrication will keep evolving. Some companies partner with universities to craft new formulas from renewable sources. Demand for better protection with a smaller footprint grows each year. As someone who’s seen machines grind to a stop too soon, I put real value on those odd-sounding chemical names hiding in an oil’s ingredient list—especially O,O-Diethyl-S-Tert-Butylthiomethyl Dithiophosphate, which keeps industry moving with fewer surprises.

What safety precautions should be taken when handling this chemical?

Understanding Risks Before Opening the Container

Many days, you find a chemical label with a name nearly impossible to pronounce and a skull-and-crossbones warning that triggers some healthy fear. Even the familiar stuff in the lab or workshop carries risks. Without looking up the exact chemical you have in mind, some habits remain essential: read the label carefully and grab the safety data sheet (SDS). The SDS gives you details on what health hazards exist, safe handling tips, and what kind of first aid might help if something goes wrong.

Make Personal Protection a Non-Negotiable

A lot of folks think, “I’ve handled this before, nothing happened, so I’ll be fine.” That attitude gets people hurt. Invest in solid personal protective equipment—chemical-resistant gloves, goggles that fit snugly over your eyes, and a good lab coat or apron. I once saw someone splash acid on their arms because they rolled up their sleeves on a hot day. Shortcuts like skipping eye protection or using torn gloves only stack up trouble.

Work in Well-Ventilated Spaces

Fumes often go ignored until someone feels woozy or coughs up a lung. Ventilation matters, even with chemicals you don’t smell right away. Use a fume hood or, at the very least, work near open windows and fans. Not long ago, a friend of mine worked with a cleaning agent that released toxic vapors. After ten minutes in a closed room, he found himself nauseous and dizzy. Good airflow saved him from something worse.

Getting Smart about Storage

Chemicals shouldn’t live wherever there’s room on the shelf. Store them in places with proper temperature control, away from sunlight, and don’t mix acids with bases or flammables with oxidizers. Labels need to face out, and lids must stay tight, not half-closed for convenience. Once, our team mixed up a bottle of bleach with ammonia cleaner in a poorly labeled closet. That mistake created dangerous gas, and we spent hours flushing the area with fresh air.

Never Trust Cleanups to Luck

Spills don’t care if you’re in a hurry. Keep absorbent pads, neutralizing powders, and disposal containers close. Never try to mop up undiluted chemicals with regular paper towels or rags—they sometimes react or catch fire. I remember one time a rookie grabbed sawdust to soak up a liquid spill, which ended up causing a small fire. Training staff on using emergency showers and eyewash stations can make the difference between discomfort and lasting injury.

Label Everything, Even in Your Own Workspace

Pouring leftover chemical into a blank bottle for “later use” sets a trap for yourself and anyone else. Add a fresh label right away—your future self will thank you. In my early days, I saw a co-worker nearly drink industrial alcohol stored in a water bottle. Accidents like that leave a lasting lesson.

Practicing Emergency Readiness

Emergency drills never seem urgent until a splash or leak happens. Know where the exits are, keep fire extinguishers handy, and post poison control numbers in plain sight. During a real crisis, even level-headed people get flustered. Practicing ahead of time helps muscle memory kick in when it truly counts.

Staying Informed is Key

New research and regulations pop up year after year. Checking in with updated guidelines keeps safety practices sharp. I subscribe to safety newsletters and encourage others to ask questions or raise concerns, no matter how minor they seem. Staying aware protects everyone in the workplace or lab.

How should O,O-Diethyl-S-Tert-Butylthiomethyl Dithiophosphate be stored?

Getting Real About Chemical Storage Risks

People who work with chemicals learn quickly—the bottle in your hand isn’t just a label and a hazard symbol. A slight slip-up with storage can spell trouble for workers, neighbors, and the whole operation. My years around labs have shown how important it is to treat every bottle with respect, especially ones like O,O-Diethyl-S-Tert-Butylthiomethyl Dithiophosphate. This compound comes with a strong odor and a complex reactivity profile. From the jump, safety means much more than just ticking off a couple of boxes on a checklist.

Temperature and Ventilation Matter More Than Policies on Paper

Too often, temperature control for chemicals gets written off as a backroom headache. In reality, this stuff can react and break down if it sits somewhere warm, humid, or exposed to sunlight. No one wants to risk fumes or pressure building up in a jerry-rigged closet storage environment. So I always push to keep stock in dedicated chemical stores where rooms are cool, dry, and dim. A basic idea: treat the product like you’d treat a prized ingredient in your kitchen—don’t leave it near an oven or window and definitely not next to something it could react with.

Poor air circulation almost always spells problems for sulfur-based organophosphates like this one. Even slight vapor buildup can irritate eyes and lungs, or worse, risk a fire. I’ve seen too many workplaces where the “solution” is a fan in the corner of a cluttered room, when a proper mechanical vent hood or explosion-proof exhaust system makes all the difference in practice.

Containers and Compatibility—A Real-World Lesson

I remember a time when a co-worker, rushing through cleanup, poured a leftover batch into a metal drum—bad call. Corrosion and contamination cropped up inside of a week, stressing everyone out. Glass, high-density polyethylene, or steel with compatible linings all last much longer and don’t react like cheap substitutes do. Clean containers with tight-fitting lids cut down risk and waste. Good labels with clear hazard notes keep everyone honest about what they’re handling, even long after the first handoff.

Fire Safety—Not Just a Checklist Item

Fires aren’t common with O,O-Diethyl-S-Tert-Butylthiomethyl Dithiophosphate, but if one starts, things escalate fast. Sprinklers, dry chemical extinguishers, and good signage all play a part in keeping trouble at bay. A fire-resistant storage cabinet well away from reactive metals, oxidizers, or strong acids makes a regular shelf look reckless by comparison. Regular safety drills can make the difference between a close call and a full-blown incident.

Training Isn’t Optional

Trust melts fast in a crisis. Folks need to know the nature of the chemicals on hand—not just from a safety data sheet, but from real training with hands-on walk-throughs. I’ve seen the best safety cultures involve people who ask questions and speak up if a storage practice seems off. That’s where mistakes get caught and fixed before anyone gets hurt.

Solid Solutions for Long-Term Handling

I urge companies to invest in routine inspections, container upgrades, and clear communication. Keeping storage areas organized, away from busy workspaces, and under lock and key just makes sense. One weak link—be it poor labeling, a rusty drum, or a blocked vent—turns small problems into disasters.

Protecting worker health and business reputation comes down to everyday discipline. There’s no substitute for taking chemical storage seriously, every single time.

What is the shelf life of this product?

Looking Beyond the Label

People want to get the most out of their purchases, especially with prices climbing. Food, household goods, personal care items—the question always comes up: “How long does this last?” It’s more complicated than a date stamped on a box. Companies run tests on shelf life, but real storage conditions at home rarely match those ideal lab setups.

Expiration Dates and Real-World Use

The idea behind shelf life sounds simple. Manufacturers measure how long a product keeps its quality under certain conditions. It’s often about taste, smell, color, and, for medicines or supplements, potency. Some dates signal safety; others only flag a drop in flavor or appearance.

Take milk. Even with refrigeration, the temperature in our fridge can make a bigger difference than the date. Raw fruits and vegetables present their own puzzle, since ripeness at the store may not line up with best-by stickers. Then there are canned goods—most folks know a can of beans doesn’t spoil the day after the date, but aging cans stored in a hot garage can lead to spoilage.

Safety Versus Quality

People often confuse “best by” dates with “use by” or “sell by” marks. Food safety experts say most spoilage is easy to spot through sight, smell, or taste. Dry pasta usually outlasts any date as long as it hasn’t gotten wet. Medicine, on the other hand, sometimes loses strength but rarely becomes dangerous after the date, with certain exceptions like insulin or nitroglycerin.

What Makes Shelf Life Shorter?

Humidity, temperature swings, and exposure to light all break things down. I’ve seen bread mold in two days during a summer heat wave, but the same loaf kept in a bread box during winter lasted a week. Frozen foods spoil faster after repeated thawing. Cartons left open lose freshness as oxygen and moisture creep in.

Most people don’t keep storage logs, which means we judge with our senses or go by memory. That’s why leftovers get a sticky note, and condiments in the fridge wind up forgotten until a sniff test.

Weighing Facts Over Fear

A lot of food tossed in the trash is perfectly safe. The USDA reports that Americans throw away billions of pounds yearly, much driven by confusion over dates. Learning the difference between spoilage and quality loss saves money and cuts down on waste. Food banks have even handed out guides showing which foods stay safe past their dates.

Smarter Labels and Storage Habits

Labels now give clearer language—like “best if used by”—so people know if they’re risking flavor or safety. Keeping a thermometer in the fridge, sealing dry goods tight, and using clear storage bins helps. For folks like me, cooking more at home means rotating pantry stocks regularly and turning leftovers into tomorrow’s lunch.

Knowing Your Product Pays Off

Get familiar with the items you use most. Olive oil tastes fresh for about six months after opening, but you can stretch it by keeping the bottle out of the sun. Baking powder clumps up fast in humid kitchens. If it fizzes less in water, grab a new can.

Companies need to be more transparent, but people benefit from a little knowledge. Relying on all our senses—and less on panic over a printed date—makes a difference in how far we can stretch every dollar and every meal.

Is O,O-Diethyl-S-Tert-Butylthiomethyl Dithiophosphate hazardous to the environment?

Chemicals in Everyday Use: Making Sense of Risks

Every time someone spreads a chemical booster to protect a machine or a crop, there’s a ripple effect. O,O-Diethyl-S-Tert-Butylthiomethyl Dithiophosphate doesn’t get much attention outside circles that deal with lubricants or certain farming needs, but its story speaks to a bigger concern—a lot of specialty chemicals leak into our ecosystem. It’s tempting to assume that if you can pronounce it, it’s safe. That hasn’t proven true for most industrial additives, especially ones featuring sulfur and phosphorous.

Tracking What Happens After Use

This compound commonly shows up in machinery protection as an anti-wear agent. Folks in agriculture sometimes use dithiophosphate variations to influence farmer-friendly conditions. Experience teaches that compounds like this can escape containment. Water runoff, factory drainage, or even dust by wind can ferry residues into rivers, fields, and the air. Once a molecule moves beyond the intended spot, its journey brings unpredictable outcomes.

Sulfur and phosphorus are not newcomers to agriculture or manufacturing, but synthetic versions often behave differently from natural forms found in soil or water. Some breakdown products of dithiophosphates can linger, sticking to soil or drifting through streams. Studies show that certain dithiophosphates persist, slow to break down under sunlight or with bacteria. These sticky molecules sometimes build up in fish and plants, echoing up the food chain. You might find trace amounts in water supplies or in the food people eat.

Real Experience and Evidence

Years of monitoring waters downstream from industrial areas reveal that dithiophosphate compounds can disrupt aquatic life. Fish exposed to parts-per-billion levels in lab studies show trouble with breathing, feeding, and reproducing. One major research review in environmental chemistry confirms the hazardous profile for aquatic organisms, especially those that rely on clean water for survival. While not all dithiophosphates behave the same, this particular formulation fits into a risk category worth careful attention.

Wildlife doesn’t process these chemicals like humans do. Birds landing on contaminated soil pick up trace amounts, and that builds up in fat stores and eggs. A friend who manages an outdoor nursery once shared stories of seedlings that failed to thrive after a nearby facility’s residue found its way into rainwater. These aren’t isolated incidents—such cases reflect broader patterns seen in communities with heavy chemical use.

Searching for Solutions

Minimizing the footprint starts with stricter safeguards during manufacturing and application. Companies following close monitoring and spill-prevention plans cut leaks at the source. Wastewater treatment that screens out sulfurous and phosphate-based molecules works—but only when regularly maintained. Choosing more biodegradable alternatives for similar functions, especially in large-scale farming, makes a real difference. Even small regulatory improvements, like regular soil and water testing near factories, have paid off where they have been tried.

Education also plays a part. Workers and farmers knowing exactly how to handle and dispose of dithiophosphates reduce risky accidents. Consumers asking questions about what lands on their food or near their homes push companies to reconsider the chemistry behind their products.

Taking Responsibility, Not Waiting for Trouble

Habitat protection doesn’t happen by accident. People sharing spaces with industrial activity owe it to themselves and their neighbors—plant and animal—to understand the chemicals at work. O,O-Diethyl-S-Tert-Butylthiomethyl Dithiophosphate sits in a gray zone, neither banned outright nor completely trusted. Tackling its risks gets easier once the science guides responsible choice, not just profit or convenience. For those of us who spend time outdoors or rely on clean water, keeping a close watch matters today, so future generations aren't left cleaning up a bigger mess.

O,O-Diethyl-S-Tert-Butylthiomethyl Dithiophosphate
Names
Preferred IUPAC name O,O-diethyl S-(2-methyl-2-propanylthiomethyl) phosphorodithioate
Other names O,O-Diethyl-S-(tert-butylthiomethyl)dithiophosphate
O,O-Diethyl S-tert-butylthiomethyl dithiophosphate
O,O-Diethyl S-(tert-butylthiomethyl)dithiophosphoric acid
Diethyldithiophosphoric acid S-(tert-butylthiomethyl) ester
Pronunciation /ˌoʊ.oʊ.daɪˈɛθɪl ɛs tɜːrtˈbjuːθɪlˌθaɪ.oʊˈmɛθəl daɪˌθaɪəˈfɒs.feɪt/
Identifiers
CAS Number 75951-72-9
3D model (JSmol) `09f0c6dc1123dbe126f23daea59276e4`
Beilstein Reference 1718734
ChEBI CHEBI:133485
ChEMBL CHEMBL2105939
ChemSpider 22597341
DrugBank DB11471
ECHA InfoCard ECHA InfoCard: 100.127.516
EC Number 244-839-6
Gmelin Reference 83280
KEGG C19315
MeSH C014212
PubChem CID 15591117
RTECS number UC8775000
UNII 6H7T00D8HF
UN number UN3082
CompTox Dashboard (EPA) DTXSID9016933
Properties
Chemical formula C9H21O2PS2
Molar mass 304.42 g/mol
Appearance Light yellow liquid
Odor Slightly mercaptan-like
Density 1.13 g/cm³
Solubility in water insoluble
log P 3.93
Vapor pressure <0.01 mmHg (20°C)
Acidity (pKa) 1.79
Basicity (pKb) 3.75
Magnetic susceptibility (χ) Magnetic susceptibility (χ): -72 × 10⁻⁶ cm³/mol
Refractive index (nD) 1.5160
Viscosity Viscous liquid
Dipole moment 3.61 D
Thermochemistry
Std molar entropy (S⦵298) 576.6 J·mol⁻¹·K⁻¹
Std enthalpy of formation (ΔfH⦵298) -651.2 kJ/mol
Pharmacology
ATC code QH1010
Hazards
Main hazards Harmful if swallowed. Causes skin irritation. Causes serious eye irritation. Toxic to aquatic life with long lasting effects.
GHS labelling GHS02, GHS07
Pictograms GHS07,GHS09
Signal word Warning
Hazard statements Harmful if swallowed. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.
Precautionary statements P210, P261, P280, P305+P351+P338, P310
Flash point 70 °C (closed cup)
Lethal dose or concentration Oral rat LD50: 1140 mg/kg
LD50 (median dose) LD50 (rat oral) 350 mg/kg
NIOSH BWC86780T7
PEL (Permissible) PEL (Permissible Exposure Limit) for O,O-Diethyl-S-Tert-Butylthiomethyl Dithiophosphate: Not established
REL (Recommended) 5 mg/m³
IDLH (Immediate danger) Not established
Related compounds
Related compounds O,O-Diethyl Dithiophosphate
O,O-Diethyl-S-Methyl Dithiophosphate
O,O-Diethyl-S-Ethyl Dithiophosphate
O,O-Diethyl-S-Butyl Dithiophosphate
O,O-Diethyl-S-Isopropyl Dithiophosphate