Wusu, Tacheng Prefecture, Xinjiang, China admin@sinochem-nanjing.com 3389378665@qq.com
Follow us:



O-Methylcarbamoyl-3,3-Dimethyl-1-(Methylthio)Butyraldoxime: Context, Challenges, and Directions

Roots and Relevance in Chemical Research

O-Methylcarbamoyl-3,3-Dimethyl-1-(Methylthio)Butyraldoxime, a tongue-twisting name few outside lab circles ever say aloud, owes its existence to decades of meticulous organic chemistry advances. In the old days, scientists pieced together molecules like this by trial, error, and a lot of patience in glassware. Over time, the push for new aldoximes created a small family of chemicals with unique functional groups—think aldoxime and methylthio, both well-known in synthesis work. This compound marks an intersection where carbamoyl and methylthio meet a bulky dimethyl backbone, likely dreamed up to overcome issues chemists ran into with earlier, simpler compounds. Developers hunted for molecules with better selectivity or improved reactivity, not just novelty.

Getting to Know the Molecule

Anyone who has handled this compound or scouted its literature will notice it doesn’t feel like a “commodity” chemical. Its molecular backbone isn’t just decorative—the methylthio brings in sulfur’s unique traits, the oxime moiety sets the stage for intriguing chemical change, and carbamoyl groups send ripples through properties like solubility and stability. If you’ve measured out crystalline samples, you’ve noticed an off-white hue, not much smell, and a texture that doesn’t easily escape from weighing paper. Unlike simpler aldoximes, the design here seems intentional, likely aimed at modifying reactivity or safety compared to parent structures.

Physical and Chemical Personality

Anyone spending long enough with this molecule comes to recognize its stubbornness toward water and its moderate solubility in polar organic solvents. The methylthio and carbamoyl moieties do more than dress up the name—they can slow down hydrolysis, buff up lipophilicity, and alter how enzymes or chemical reagents see the molecule. I’ve watched tails of these functional groups complicate chromatography runs, a reminder that thoughtful design can create as many lab headaches as it solves. Melting point and other basic specs matter less to end-users and more to the scientists who work out purification and storage details. Over and over, granular details shape what researchers can actually do in the lab.

Technical Specs and Label Realities

Labels and technical data only tell half the story. Manufacturing runs have to balance purity, practical storage, and workable shelf life. Specifications tend to follow the needs of the groups driving research. Regulatory concerns shape labeling, especially with a compound in the oxime family, since related chemicals have cropped up in safety investigations and environmental assessments. Researchers tracking batch numbers and certificates of analysis start to appreciate the care that goes into making sure each shipment actually contains what it claims. Every so often, a batch turns up a surprise impurity or a disappointing dissolution profile, which sends folks back to the drawing board.

How Scientists Piece it Together

Building O-Methylcarbamoyl-3,3-Dimethyl-1-(Methylthio)Butyraldoxime calls for a certain knack. Stepwise functionalization, precise control of moisture, and air-sensitive stages mean you can’t just rush through. Early steps prep the aldehyde, tack on the oxime, and leave the methylthio for the right stage. Some syntheses go through protected intermediates; others tweak buffer conditions to squeeze out maximum yield. Prep chemists, through cycles of experiments, learn which solvents create the fewest headaches and which reagents offer just enough punch to finish the job without scrambling the molecule’s delicate sections. Without the benefit of decades-old protocols, many teams adapt on their feet—sometimes learning as much from a failed batch as a successful one.

Chemical Tweaks and Pathways

If you’ve ever tried ringing changes on a molecule like this, you know functional groups open the door to endless tinkering. The oxime can play host to acylation or reduction reactions, dulling or sharpening its reactivity. The methylthio group, especially in biologically skewed research, gets swapped for other sulfides or oxidized to sulfoxides, each time changing how the molecule interacts with cells or enzymes. The carbamoyl corner stays under the radar, but shifting its methyl group or swapping for a bulkier moiety can send solubility and interaction properties in new directions. It doesn’t take much back-and-forth in the lab to learn that every alteration brings trade-offs. The resulting reaction conditions often leave cleanup crews cursing stubborn by-products or scrambling to find a more forgiving workup.

Synonyms and Naming Puzzles

Researchers often deal with synonyms and alternate labeling—it’s the price of coming late to a crowded chemical party. Beyond the systematic moniker, you’ll run across trade names or abbreviations in journals that only make sense to a select circle. This patchwork can cause headaches for anyone trying to interpret literature that bounces between CAS numbers, IUPAC names, or commercial shorthand. Mislabeling or confusion over synonyms has torpedoed more than one experiment. For everyone tracking safety data or regulatory status, clear naming is less about convenience and more about making sure the right standards get applied.

Safe Handling in the Real World

Working with this compound means real risks, not just lines buried in a safety data sheet. Spills, dust, or skin exposure can demand more than just ordinary PPE. The oxime group points a red flag for those familiar with toxicology, and the methylthio unit brings its own health conversation, especially in the presence of acid or oxidants. In my experience, lab workers quickly learn to double-check ventilation and glove integrity after reading up on similar compounds. Disposing of waste or cleaning up after syntheses creates another set of headaches—institutions often insist on detailed records and specialized containers to avoid cross-contamination and worker exposure. As research keeps moving, safety training grows even more vital.

Where this Molecule Fits into Modern Application

The landscape for compounds like this spreads across several frontiers. Some labs chase therapeutic leads, hunting for new antidotes or enzyme modulators building on the aldoxime backbone. Other teams see potential in agrochemical development, where unique functional groups shift the behavior of bioactives. The presence of methylthio or carbamoyl components lets chemists nudge activity profiles in directions that simpler analogs don’t allow. I’ve watched groups struggle to balance potency with manageable toxicity; everyone wants breakthroughs, but few welcome regulatory snags or unexpected environmental impacts. Some keep their cards close, hoping to ride out the crowded patent landscape.

R&D Directions and Persistent Hurdles

R&D teams working with this compound spend as much energy managing setbacks as celebrating new reactivity. Solubility limits, sensitive moieties, and hardware wear-and-tear create bumps in the road. Shifts in reactivity or unexpected side-products during scale-up send projects off course. Despite these bumps, persistent teams scout for variants that blunt toxicity or enhance selectivity, motivated by stories of minor substitutions making all the difference. The practical pressure to reduce costs never fades, leaving chemists searching for solvent swaps or cleaner routes that trim labor and waste. Cross-disciplinary interest from biologists and pharmacologists leads to fresh questions the original developers barely imagined.

Toxicology and Our Responsibility

This is where reality checks kick in. Anyone following the fate of related oximes in animal models knows hazards are more than theoretical. Reports link some structures to enzymatic interference or neurotoxicity late in testing, knocking candidates off the shelf despite early promise. Regulatory scrutiny sharpens as new hazards appear in published research. The urge to push boundaries must always bend to a duty to prove and monitor safety. I’ve seen projects halted by unexpected findings during routine screening—a reminder that disciplines cannot afford shortcuts here. Companies and research teams catch criticism, often deservedly, if they leave out key safety screens or downplay ambiguous results.

Looking Ahead

Peering down the road, this compound’s future lies in careful expansion. Therapeutic promise sparks plenty of investment, but new data from toxicity screens or environmental studies could rapidly reshape priorities. More heads will turn to computational methods, hoping predictive models catch liabilities before costly syntheses. Regulatory watchfulness won’t soften, and those in the trenches will need to show not only that new modifications deliver but that they do so safely. Calls for greener chemistry methods grow louder, pressing for alternatives to harsh reagents or waste-heavy protocols. The work never really ends—changes in economic or regulatory winds force regular resets.




What is O-Methylcarbamoyl-3,3-Dimethyl-1-(Methylthio)Butyraldoxime used for?

Use in Chemical Research and Industry

O-Methylcarbamoyl-3,3-Dimethyl-1-(Methylthio)Butyraldoxime might look like a jumble of words, but for experts in chemistry and pharmacology, it signals a compound with a specific job. This substance pops up most in research settings, especially in projects examining enzyme inhibition, toxicology, and potential antidotes for certain types of poisoning. Drawing from my time in a university lab, I saw firsthand how compounds like this one become puzzle pieces for bigger breakthroughs. Researchers explore molecular structures like this to block or slow down dangerous chemical reactions—often those caused by pesticides or nerve agents.

You can’t talk about compounds like this without linking them to oxime reactivators. In toxicology, oxime-based chemicals step up when someone’s been exposed to organophosphates, found in pesticides and nerve agents. The enzymes responsible for healthy nerve function—acetylcholinesterases—get blocked by these nasty agents. O-Methylcarbamoyl-3,3-Dimethyl-1-(Methylthio)Butyraldoxime and relatives in its chemical class have been explored for their power to bring those enzymes back under control. The science aims to restore enzyme activity, reversing the deadly grip these toxins can deliver.

Why This Compound Matters

You might wonder why anyone outside of a lab should care. I grew up in a community surrounded by farms. Pesticide use came standard, and nobody in my family wanted to imagine the fallout of an accidental exposure. Compounds like this might seem removed from day-to-day living, but their success could mean better treatments for accidental poisoning, not only for people but livestock and pets, too. Medical personnel lean on these discoveries during emergencies, especially when responding to chemical accidents or deliberate attacks.

Safety, Trust, and the Road Ahead

No one wants to see potentially toxic chemicals land in the wrong hands. The strict controls on research chemicals like this—think locked cabinets and sign-in sheets—come from decades of real-world accidents and misuse. Regulators, scientists, and public health agencies keep tight watch, not only to protect workers, but also to control exports and imports around the world. My early days as a trainee involved more paperwork and safety drills than actual lab work, all for good reason.

Getting new antidotes to market takes grit. It isn’t enough to show promise in a test tube. Clinical trials, rigorous review, and constant updates to safety protocols stand between a promising lab result and an approved treatment. Drug development for rare poisoning cases can stall for years, sometimes forever, because pharmaceutical companies hesitate to invest without a large guaranteed market. In my own circle of researchers, many hope for deeper investment in public health preparedness, including better funding for rapid antidote development and reliable stockpiles.

Pathways to Safer Solutions

A safer future doesn’t just ride on a single compound, but on broad collaboration. Health systems, industry, and local communities need better training and faster information-sharing about treating poisonings. Emergency medicine must evolve alongside chemical risks, with new treatments waiting in the wings. That’s where compounds like O-Methylcarbamoyl-3,3-Dimethyl-1-(Methylthio)Butyraldoxime make a difference, nudging science one step closer to immediate responses that save real lives.

What are the safety precautions when handling this product?

Why Caution Matters

Working around chemicals in my own garage taught me pretty quickly that a small mistake can cause big problems. Chemicals, whether for cleaning or industrial use, always demand respect. Even a product that looks harmless can cause burns, toxic fumes, or fires if used carelessly. I’ve seen colleagues break out in rashes after skipping gloves, and I’ve stood back during a close call when a simple spill turned into a coughing fit for everyone nearby. Handling chemicals safely boils down to knowing what you’re dealing with—and taking it seriously every single time.

Protecting Your Skin and Eyes

The most common injuries come from splashes and spills. I never forget my gloves anymore. Chemical-resistant gloves keep harsh substances off your skin, whether you’re pouring, mixing, or cleaning up. Good eye protection makes a difference too. Safety goggles cover more than just your eyes—they stop splashes from reaching any part of your face if a container tips or pressure builds up. Even a splash to the arm can cause pain, but eyes heal less easily. A simple pair of safety glasses or a face shield can prevent a trip to urgent care.

Breathing Easy

Ventilation often gets overlooked, but fumes are a silent danger. Years spent working in closed rooms taught me that just because you can’t see a vapor, it doesn’t mean your lungs won’t feel it later. Using chemicals in spaces with good airflow keeps the concentration of vapors down. Some products let off fumes that can irritate your throat or even knock you out. Respirators make sense if stronger fumes are expected. Most labels have a section about toxic vapors or the need for fresh air. Ignoring that information creates long-term health risks no one should shrug off.

Keeping Fire in Mind

Some chemicals catch fire from a tiny spark. I’ve watched as a friend nearly set a workbench alight pouring solvent near a plugged-in drill. A product marked “flammable” deserves a clear space away from ignition sources—cigarettes, space heaters, and even static charges. Containers with proper seals stop accidental spills and vapor leaks. Clean workspaces save headaches here; clutter invites trouble if a container tips over.

Proper Storage and Disposal

Even the safest worker runs into problems when products get tossed carelessly. Keeping chemicals in original containers avoids mix-ups. Labels show at a glance what’s inside, and how to clean it up if a spill happens. Mixing products—bleach with ammonia, for example—creates poisonous gases that have sent people to the hospital. I’ve seen too many used bottles tossed into regular trash, even when they still hold residue. Hazardous waste programs or collection days keep harmful products out of the landfill and water supply.

Reading and Following Instructions

Instructions might look like legal filler, but I learned the hard way they often hold the best advice. Even small print covers important facts—how to mix, what protective gear to use, and how to deal with accidents. Company hotlines and safety sheets (SDS) answer questions fast if something unexpected happens. Word of mouth matters too. When in doubt, asking someone who’s worked with that chemical keeps accidents from happening twice.

Supporting Smarter Workplaces

Training makes a big difference. In jobs where chemicals play a daily role, regular safety drills help everyone. Posting emergency numbers, showing where spill kits sit, and having eyewash stations nearby builds real confidence. Replacing old gear, restocking gloves, and keeping safety glasses handy turns safety from a chore into a habit. Kids at home learn by seeing these habits—safe storage, careful pouring, and never taking risks with dangerous products.

How should O-Methylcarbamoyl-3,3-Dimethyl-1-(Methylthio)Butyraldoxime be stored?

Understanding the Risks and Responsibilities

Chemicals that sound this complex rarely play nice if you treat them casually. O-Methylcarbamoyl-3,3-Dimethyl-1-(Methylthio)Butyraldoxime, like many specialty compounds, serves valuable roles in research or manufacturing. But from my experience in laboratory management, materials like this one can ruin an entire week — or worse — if they’re exposed to heat, moisture, or an open-air shelf.

The Basics: Why Conditions Matter

I remember a graduate supervisor sharing stories about warehouses where poorly kept chemicals morphed into unknown black goo or slimy crystals. Not only does poor storage create fire risks and possible poisoning, it can completely wreck an inventory and cost thousands. Chemicals with methylthio groups and oximes get fussy if humidity creeps up.

What Science and Regulations Say

The European Chemicals Agency and OSHA stress storing active organic compounds in tightly sealed containers with clear labeling. Vapors and reactive off-gassing happen faster than most folks expect. At many university facilities, the safety sheets demand temperatures between 2°C and 8°C (typical fridge range). Any spike might lower a compound’s purity and can catalyze unwanted byproducts. No one wants surprise chemistry, least of all in bulk storage.

Moisture is another stubborn enemy. Desiccators and silica gel packs help avoid clumping or hydrolysis. Even momentary exposure, like opening a jar for reweighing, can start hidden damage. During my post-doc, our group saw a whole batch of specialized oximes turn yellow overnight just because a rookie left the storeroom fridge cracked. That single slip sidelined weeks of work.

The Details: Prevention Beats Remediation

Dark, cool storage away from light keeps oxime-based structures stable. My own preference is amber-glass containers with PTFE-lined caps. Light can break carbon-nitrogen bonds, kicking off a domino effect of breakdown products. There’s nothing more frustrating than testing a sample only to find it no longer does what it should.

Labels on bottles should include full chemical names, preparation dates, and emergency contacts. It seems overcautious until someone grabs the wrong bottle during cleanup or a fire hits the building. Many of us learned the hard way that a missing label or faded date can trigger evacuations — or worse, injuries.

What Works in the Real World

Teams that keep clear inventory logs rarely suffer from mystery spills or cross-contamination. Digital tracking beats the old paper logbooks. Automated alerts for fridge failures and daily visual inspections tend to spot trouble before it blooms into a cleanup job.

It’s not just about following rules; it’s about protecting the people working nearby. I’ve seen veteran chemists double-check everything, never trusting a cap or label blindly. For O-Methylcarbamoyl-3,3-Dimethyl-1-(Methylthio)Butyraldoxime, these habits aren’t overkill — they’re survival skills. The risks don’t feel abstract if you’ve ever glimpsed a ruined chemical store.

Room for Improvement and Culture Change

Institutions can help by investing in reliable cold storage and giving clear training from day one. Back in my first lab job, safety seemed bureaucratic. Now, I know a few extra hours of diligence save untold headaches and protect careers. A culture where folks feel comfortable flagging storage problems always beats a team that shrugs their shoulders. O-Methylcarbamoyl-3,3-Dimethyl-1-(Methylthio)Butyraldoxime may seem like just another bottle on the shelf, but to someone who's seen what can go wrong, careful storage isn’t negotiable.

What is the chemical structure and formula of this compound?

Understanding Chemical Structures

Chemical structures can look intimidating if you don’t work with chemistry every day. They feel distant, almost like a code written for another purpose. I remember my first chemistry class—the lines, letters, and rings on the chalkboard seemed cryptic. Turns out, this code just describes how atoms connect and arrange themselves in space. Each line shows a bond, each letter stands for an element, and the pattern tells us about the molecule’s character.

Why the Molecular Formula Matters

Every compound takes on a formula—a short string of symbols that holds a lot of information. For caffeine, you see C8H10N4O2. That tells us the molecule has eight carbon atoms, ten hydrogens, four nitrogens, and two oxygens. It’s direct, no room for mystery. Knowing the formula lets anyone with some training look up properties, safety measures, and how the compound reacts. This isn’t just for lab experts. Industries that handle materials daily, like agriculture or food processing, rely on these formulas for safe mixing and correct labeling. Imagine working with fertilizers or food preservatives—you want to know exactly what’s inside and how it will behave around people or animals. Simplified formulas offer this transparency.

Looking at the Structure: More Than Letters and Numbers

The arrangement of atoms changes everything. Take glucose and fructose. Both share the formula C6H12O6, but their atomic connections create different effects on the body and on taste buds. Not only does structure affect how a substance tastes or smells, but it also shifts toxicity, reactivity, and usefulness. Chemists use two-dimensional drawings (like stick diagrams) and even 3D models to show how atoms link—sometimes in long chains, sometimes in rings or branches. These tiny differences decide how a chemical fits into living systems, pipework, or manufacturing lines. One wrong attachment can turn a safe additive into a dangerous contaminant.

Sharing Vital Structural Information

Too often, discussions about chemicals stop at the name. As a parent with kids at home, I look for detailed information on cleaning agents and medicines—not just brand names, but actual ingredients and their makeup. Looking up sodium hypochlorite, for instance, I find a basic formula: NaOCl. More than that, reading up on its structure where sodium attaches to the hypochlorite group tells me how it acts as a strong disinfectant. This kind of shared knowledge empowers both professionals and the general public to ask tougher questions about what ends up in products, water, or air.

Challenges and Better Communication

Plenty of people have slipped up because the chemical structure or formula was missing from a label or data sheet. Manufacturers sometimes keep shortcuts or trade secrets, leaving workers with just a commercial name. I know a friend who mixed two household cleaners, not realizing the result would produce toxic chlorine gas. If the formula and structure had been clear, that mistake never would have happened. It’s time for companies and regulators to put clarity first—by stamping formulas and structures alongside common names, and training people in how to read them. Schools can start early by bringing real chemical drawings into science classes, letting everyone see how small changes in these diagrams mean big changes in real life. Simple diagrams and hands-on activities help demystify concepts that once felt locked away behind textbooks or jargon.

Are there any known side effects or hazards associated with this product?

Personal Perspective on Product Side Effects

Anyone who’s tried out a new health supplement or cleaning spray understands the rush of hope—and a little worry about safety. After years of reading ingredient lists and scanning consumer reviews, it’s tough to ignore the way some products get rushed into markets before anyone can say for certain if they come with side effects. My own kitchen shelf has seen its share of “safe and natural” promises, but only some of those products lived up to the label without a nasty surprise.

Understanding Known Risks

Every product comes with stories from users, scientific testing, and regulatory attention. People deserve transparency about what happens if something goes wrong. The list of potential hazards runs long: allergic reactions, chemical burns, irritation, disrupted sleep, or even long-term health impacts. A cough syrup might claim to soothe, but real-world experience tells a different story for folks with certain allergies or those taking other medication.

Consumer safety watchdogs and regulatory agencies such as the FDA keep records of reported cases. More than one in five Americans will experience some kind of side effect each year, according to data from the CDC. It's no comfort to read a cheery product label, only to discover later that it carries a risk of dizziness or liver problems. In my own circle of friends, few people bother to search the FDA’s adverse event reporting system, but it holds valuable warnings—warnings that should be front and center.

Supporting Claims with Facts

Not every ingredient in a product receives equal scrutiny. For example, a cream’s main active ingredient passes through rigorous trials, but fragrances and fillers sometimes escape the same attention. Studies out of Harvard and Johns Hopkins highlight that up to 30% of side effects come not from the active substances, but from additives. There’s a strong need for companies to push for full-disclosure labeling, not just the active ingredient.

Products sold over-the-counter in the United States must list certain side effects. Yet, loopholes exist. A supplement labeled “all-natural” isn’t always required to warn about rare but serious side effects. This kind of labeling gap has contributed to thousands of emergency room visits each year, especially among kids and people with chronic conditions.

Why This Matters—And Solutions Worth Considering

Looking at real-world harm moves the conversation beyond hype. My own trust in a product grows only when companies show real care through transparency and third-party testing. Watching loved ones deal with nasty rashes or an unexpected reaction changed the way I choose what sits on our shelves. Products that share comprehensive safety profiles—and openly update them as new data comes in—stand out in crowded aisles.

Building safer habits includes reading more than just the marketing claims. It’s wise to cross-reference potential side effects with reputable sources. For those bringing new products to life, working with panels of independent experts and publishing safety studies helps keep communities informed and protected.

Every consumer has the right to clear information. Demanding accountability and voting with our wallets encourages companies to put more effort into rigorous testing and honest labeling. By speaking up and sharing experiences, everyone helps raise the bar for safety—one product at a time.

O-Methylcarbamoyl-3,3-Dimethyl-1-(Methylthio)Butyraldoxime
O-Methylcarbamoyl-3,3-Dimethyl-1-(Methylthio)Butyraldoxime
O-Methylcarbamoyl-3,3-Dimethyl-1-(Methylthio)Butyraldoxime
Names
Preferred IUPAC name N-methoxy-N-methylcarbamoyl-3,3-dimethyl-1-(methylsulfanyl)butan-1-one oxime
Other names Methomyl
Lannate
Mesometil
Metomil
Methomil
Methomyle
Metomiloxima
Pronunciation /ˌoʊˌmɛθəlˌkɑːr.bəˌmɔɪlˌθriːˌθriːˌdaɪˈmɛθəlˌwʌnˌmɛθəlˌθaɪ.oʊˌbjuːˈtɪr.ældˌɒk.siːm/
Identifiers
CAS Number 50700-74-4
Beilstein Reference 2266271
ChEBI CHEBI:92123
ChEMBL CHEMBL2105938
ChemSpider 20124910
DrugBank DB08796
ECHA InfoCard 03b7f28c-af0a-4fd3-b226-77795f49f81d
EC Number EC 3.1.1.53
Gmelin Reference 163388
KEGG C19297
MeSH D000068015
PubChem CID 14470017
RTECS number TZ1750000
UNII Y59V5DKY9A
UN number UN3278
Properties
Chemical formula C8H17N2O2S
Molar mass 207.29 g/mol
Appearance White solid
Odor Odorless
Density 1.08 g/cm3
Solubility in water Slightly soluble
log P 0.3
Vapor pressure 1.79E-6 mmHg at 25°C
Acidity (pKa) 12.19
Basicity (pKb) 6.5
Magnetic susceptibility (χ) -62.97 × 10⁻⁶ cm³/mol
Refractive index (nD) 1.495
Dipole moment 2.72 D
Thermochemistry
Std enthalpy of formation (ΔfH⦵298) -132.09 kJ/mol
Pharmacology
ATC code N07AB04
Hazards
Main hazards Harmful if swallowed. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.
GHS labelling GHS02, GHS06, GHS08
Pictograms GHS06,GHS08
Signal word Danger
Hazard statements H301: Toxic if swallowed. H311: Toxic in contact with skin. H331: Toxic if inhaled.
Precautionary statements P264, P270, P273, P301+P312, P330, P501
NFPA 704 (fire diamond) 1-3-2-0
Flash point Flash point: 144.2 °C
Lethal dose or concentration Lethal dose or concentration: "LD50 oral (rat): 16 mg/kg
LD50 (median dose) LD50 (median dose): 2.8 mg/kg (intraperitoneal, mouse)
NIOSH RN8225500
PEL (Permissible) PEL (Permissible)": "Not established
REL (Recommended) 0.05 mg/m3
Related compounds
Related compounds Methomyl
Aldicarb
Oxamyl
Thiodicarb
Carbaryl
Carbofuran
Propoxur
Carbosulfan