© 2026 Sinochem Nanjing Corporation,
All Right Reserved
Long before specialty chemicals replaced homegrown solutions, chemists started to take notice of dicyclopentadiene. Its discovery goes back to the 19th century, during the mad dash to catalog everything hidden in coal tar and crude oil. At its core, dicyclopentadiene comes from the dimerization of cyclopentadiene, itself a product of cracking naphtha, a fraction of petroleum. Refineries found that as the oil industry exploded, certain byproducts showed unique properties worth more than their weight in waste. Dicyclopentadiene became one of those substances, initially lumped in with lesser-known hydrocarbons before its valuable chemistry took center stage. Early researchers experimented tirelessly, often in cramped, fume-filled labs, to isolate it and figure out what it could do. By the mid-20th century, its polymerization abilities and usefulness in synthetic resins and plastics became clear. Demand shot upward as the postwar era called for new materials, and dicyclopentadiene rode the wave of modern chemical innovation.
It might look like just another oily liquid or white crystalline solid depending on the temperature, but few chemicals pull their weight across so many industries like dicyclopentadiene. People started to realize it could anchor tough resins, help build high-impact plastics, and offer cost-effective feedstock for many intermediates. Comparable only to a select list of petrochemicals, it feeds into goods most folks never consider, from automotive parts to circuit boards. Even the smell – often described as camphor-like – hints at its volatility and raw chemical punch. Some manufacturers moved to high-purity versions for specialty plastics, others stuck with industrial grades for less picky end uses. No matter the grade, its impact stretches from boat hulls to packaging to rubber tires.
From my perspective, the physical nature of dicyclopentadiene changes how people handle and view it. Liquid at room temperature but solidifying around 32 degrees Celsius, it poses both logistical and safety puzzlers. Transparent to pale yellow in hue, it exudes a powerful, nose-tingling odor that lingers, signaling its low boiling point near 170 degrees Celsius and its knack for vaporizing if left unchecked. Pure dicyclopentadiene shows decent thermal stability, but once heated enough, it can break into cyclopentadiene again – a feature synthetic chemists love for controllable reactions. Insoluble in water and eager to dissolve in most organic solvents, it slips easily into many reaction tanks and mixing vats. Experiencing the pungent smell firsthand sticks with you, a caution against underestimating its potency or forgetting adequate ventilation.
In any warehouse or chemical storeroom, accurate labeling of dicyclopentadiene makes the difference between smooth operations and safety issues. The typical drum bears warnings about its flammability and reactivity, thanks to a flash point lower than some common fuels. Shipping containers reflect its susceptibility to temperature swings, since a cold day can solidify its contents and frustrate anyone who has to pump or pour. Some specifications get very precise about permissible impurities, especially when destined for materials like poly-DCPD automotive components or pharmaceutical intermediates. I’ve watched teams fret over data sheets, determined to hit target specs yet wary of the regulatory scrutiny that has ramped up in recent years in both export and domestic markets.
You won’t find anyone distilling small batches of dicyclopentadiene in a garage; this synthesis belongs to big industry. The typical process starts with steam cracking naphtha or ethylene, which releases cyclopentadiene in a riot of other hydrocarbons. Quick reaction conditions dimerize the cyclopentadiene into dicyclopentadiene, and distillation separates the product. Purification challenges workers to account for leftover monomer, which could destabilize storage in warm climates. Most operations recycle the heat and vapor streams, returning as much unreacted material as possible to the front lines. No two plants follow the exact same setup, but everyone chases high yields and minimal off-gassing, driven by efficiency and waste minimization. Watching a modern unit in action highlights the level of automation and monitoring required to keep output pure, safe, and reliable.
Dicyclopentadiene serves as a raw material for more than just itself; its reactive double bonds open doors to hundreds of significant modifications. Ring-opening metathesis polymerization (ROMP) stands out as a game changer, leading directly to resins and plastics with impressive impact resistance and moldability. Under heat or with catalysts, it breaks down into cyclopentadiene that can then undergo Diels-Alder reactions with other molecules, allowing researchers and manufacturers to tailor-make complex cyclic compounds. Reactivity toward acids or halogens broadens the scope even more, spurring new routes for agrochemicals, fine chemicals, and advanced polymers. Having seen chemists run these transformations, I appreciate both the thrill of discovery and the strict attention demanded by dicyclopentadiene’s energy-rich bonds.
Chemical suppliers don’t make things easy by sticking to one name. Dicyclopentadiene appears as DCPD, dicyclopentadiene resin monomer, or sometimes just “di-cp” in shorthand. Searching technical catalogs or procurement lists, these aliases can trip up inexperienced buyers or researchers. A seasoned hand learns every alternate spelling, synonym, and numeric identifier, since regulatory codes and customs logs still differ region by region. I’ve seen cases where shipments got delayed or pulled due to paperwork confusion, underlining how even the name carries real-world weight in global chemistry.
Safety isn’t just about paperwork; daily experience in plants and labs shapes everyone’s awareness of dicyclopentadiene’s hazards. Constant vigilance is required because its vapors can irritate lungs and eyes, and contact with the liquid risks skin burns or allergic reactions. Fire marshals keep a close eye on storage rooms since the chemical’s flash point marks it as a fire hazard. Over the years, companies invested in improved ventilation, specialized personal protective equipment, and leak detection systems. Regular drills and training transform risk from a distant concept to a team’s highest priority. Strict regulatory limits, especially in countries that enforce rigorous workplace air standards, push operators to double down on engineering controls and disciplined housekeeping. The best operators know a moment’s inattention can trigger expensive cleanup or worse, so they take every safeguard seriously.
Step outside the lab or refinery, and the influence of dicyclopentadiene appears everywhere. In the composite materials world, its derivatives underpin the strength and endurance of wind turbine blades and large-scale construction panels. The resin blends found in car bumpers, truck panels, and even mass transit seats rely on modified dicyclopentadiene to deliver crash resistance and aging toughness. Sport and recreation gear also quietly rely on it, from high-end kayaks to safe, shatter-proof playground equipment. Rubber manufacturers turn to dicyclopentadiene as a crucial modifier, cranking up durability in tires and seals. Coatings and adhesives companies value its chemical backbone for protective films and glues. After years of seeing the real-world impact, it's clear that dicyclopentadiene has left its fingerprints on everyday life, thanks to its versatility and hard-wearing properties.
The research field treats dicyclopentadiene as a flexible building block. Countless teams in industry and academia explore its next generation of polymers and composites, hungry for better temperature resistance and sustainability. Scientists play with catalysts, tweak polymer chains, and push boundaries -- all aiming to produce greener, lighter, or more durable materials. Current trends in chemical recycling also target dicyclopentadiene-containing wastes, experimenting with route reversibility and monomer recovery. Watching these efforts reminds me of how far a molecule can travel from its crude beginnings to cutting-edge applications. The constant push for renewables even pushes biobased processes into the conversation, as companies scout ways to move beyond fossil feedstock without sacrificing performance.
Handling dicyclopentadiene has always demanded a close eye on health. Its acute effects grab attention, especially for those inhaling vapors or dealing with skin contact. Chronic exposure studies earned a place in chemical safety literature, leading to strict occupational limits and best practices for exposure monitoring. Toxicologists and occupational doctors have published findings on irritation thresholds, metabolic breakdown, and long-term risks – especially in manufacturing zones where high concentrations may occur. Webs of regulatory guidance from authorities like OSHA and the European Chemicals Agency guide usage patterns across continents. Lab protocols now reflect decades of lessons learned: use proper fume hoods, glove up, and never underestimate a seemingly routine reaction. The move toward greener alternatives and sustainable work conditions keeps this topic front and center for research funders, policy shapers, and anyone who takes industrial hygiene seriously.
As pressure builds for higher sustainability and better materials, dicyclopentadiene will need to justify its place among tomorrow’s chemicals. Many in the field believe its core strengths – structural toughness, reactivity, and processability – give it staying power. Yet, the chemical industry as a whole faces new scrutiny over carbon usage, emissions, and end-of-life impacts. Some innovators work on recycling both pure dicyclopentadiene and its polymers, while others pursue safer derivatives and bio-based monomers. Expanding the use of advanced catalysts and greener solvents could drop its environmental footprint. Ongoing regulatory tightening may alter how it’s transported and stored, pressing companies to innovate on safety fronts. The journey from waste byproduct to essential material shows how chemistry adapts, so everyone invested in this field knows fresh possibilities emerge whenever people merge curiosity with practical need.
Dicyclopentadiene often hides behind complicated syllables, but it shapes much of what the world relies on. The moment a new car rolls off the lot, dicyclopentadiene already left its mark. Car manufacturers take it and create specialty plastics, giving parts like bumpers and grilles their toughness without piling on unnecessary weight. This approach keeps vehicles safer and helps wallets at the gas pump. Most people overlook the reason those exterior parts hold up through years of sunlight, rain, and the occasional runaway shopping cart, but they owe a lot to this chemical’s hardiness.
Cities use dicyclopentadiene too, fitting it into building materials. Construction companies blend it into resins that transform into roofing sheets and protective coatings, sometimes without folks even noticing. These materials stand up to harsh weather, blocking water leaks and cutting down maintenance costs. With so much pressure to keep infrastructure strong and affordable, dicyclopentadiene acts as a quiet supporter. Studies from the American Chemistry Council trace the durability of construction plastics back to ingredients like this, especially in places that deal with wild weather swings.
Trucks and trains need better seals and gaskets, a job many engineers solve using compounds based on dicyclopentadiene. It helps manufacturers create strong, flexible rubbers. Tires grip the road, engine gaskets stop leaks, and workers rely on industrial belts made stronger by this chemical. The global rubber market keeps expanding, pulling dicyclopentadiene along for the ride. According to market data from Research and Markets, demand for certain resins keeps climbing, powered in no small part by what starts in this not-so-glamorous white powder.
The world loves convenience and shelf life, especially in plastic packaging. Dicyclopentadiene forms the backbone of some liquid containers and food trays. It’s behind the scenes, but it gives those plastics their resistance to cracking—so bottles don’t split before the milk reaches home. As sustainability becomes a stronger focus, companies keep searching for ways to stretch product life while reducing waste. Dicyclopentadiene’s role in modifying plastics can’t be ignored here, because stronger packaging often means less spoiled food and less landfill clutter.
Chemicals spark debate, especially those used in high volumes. Worker safety earns top priority in industries using dicyclopentadiene. Proper ventilation, smarter equipment, and regular health checks show there’s no substitute for looking out for people on the job. Researchers aim to improve handling. Safer substitutes and process changes keep popping up, but so far, demand for strong, durable materials wins out. People in science and manufacturing keep pushing toward greener production, because while industry can't drop essential chemicals overnight, healthier habits benefit us all.
Using dicyclopentadiene isn’t just about chemistry; it ties directly to building safe cars, lasting homes, and packaging that does its job. With better oversight, research investment, and smart habits on shop floors, industry can make sure the chemical works for people, not against them. That balance feels more important than ever as technology grows and expectations change. While not a household word, the ripple effects from dicyclopentadiene reach across sectors and straight into everyday life. Most people may never see its name on a label, but benefits roll forward every time a product lasts just a bit longer or a repair holds up for years.
Many chemicals demand respect in the workplace, but dicyclopentadiene (DCPD) pushes the point. You’ll find it in resin plants, fuel additives, even in the process of making some plastics and pesticides. At first glance, it looks a lot like any other pale liquid. Roll that drum into a warm warehouse or take a whiff without thinking and the risks spell themselves out.
DCPD stings eyes, nose, and throat right away. Breathe it in for just a few minutes and the headaches begin, with nausea coming soon after. Longer exposure means your lungs, kidneys, and even your brain take a hit. Very little of this escapes into the environment without harming plants and aquatic life. All that means every interaction deserves a plan beyond a quick sniff test.
A thin pair of gloves or dinky safety glasses won’t cut it. Long sleeves, chemical-resistant gloves, and proper goggles come first. Good ventilation—think extractor fans, not just a cracked window—keeps the air clean. I’ve seen too many small shops cut corners and pay for it in sickness, lawsuits, or worse.
If a drum tips over or a hose leaks, treat it as a chemical spill, not just a mess to mop up. That means using absorbent pads, stopping traffic near the spill, and calling in a trained crew, not the janitor with a mop. Every shop should keep spill kits where workers can reach them, stocked and checked each month.
In my experience, many accidents start because no one bothers to explain what DCPD really does to a person or what’s in the material safety data sheet (MSDS). Quick, on-the-job walk-throughs help, but thorough, repeat training with real examples saves lives. Everyone—from forklift drivers to lab techs—should know the risks and the emergency procedures by heart.
Keep DCPD cool, dry, and sealed. Any drum or storage tank must get a solid inspection for leaks, rust, or pressure build-up. Watch out for any signs the chemical is breaking down, especially in heat. For disposal, follow local hazardous waste rules or risk fines—and more importantly, neighborhood safety. Taking shortcuts on dumping DCPD can set you up for environmental damage that lasts years.
Good communication in the shop or plant keeps the small mistakes from turning into disasters. Labels need to stay clear. Emergency showers and eye wash stations should always work, never blocked with boxes. Shop managers should walk the line often, noticing unsafe shortcuts before OSHA asks the same questions.
Scientists keep searching for better ways to handle chemicals like DCPD, and automation in handling or improved suit technology help keep more people safe. Industry leaders push for clear, simple safety signs and routine health checks to spot warning signs early. Real progress comes from not just reading the rulebook but writing down new rules when experience proves the old ones aren’t enough.
Personal stories about chemical safety stick with you. Seeing an experienced worker suffer after a small mistake reminds a whole team to take warnings seriously. Dicyclopentadiene isn’t a chemical for guesswork or shortcuts, and strong habits now shape safer workplaces for everyone down the line.
Dicyclopentadiene brings more than just a complex-sounding name to the chemical world. This compound, with the formula C10H12, carries a presence in manufacturing, the plastics industry, and chemical research. Its use reaches far beyond labs or plant floors; it helps make products stronger, more heat-resistant, and reliable, especially in things like resins and insecticides. This chemical stands out for the way it’s produced too—often during the cracking of petroleum or natural gas. Its cycle-shaped structure gives it unique reactivity, and that’s how it slips into so many chemical processes.
Every chemical takes on a kind of global identification code called a CAS number. For dicyclopentadiene, it’s 77-73-6. That string of digits makes it unmistakable, whether you’re reading a European safety sheet or searching an American chemical database. This identifier reduces mistakes. It helps keep shipments, storage, and handling clear—misreading or guessing physical properties can lead to health or environmental headaches. Forgetting something as basic as the CAS number in procurement or safety documentation leads to confusion, and in my own experiences with regulatory paperwork, I’ve seen what a difference a reliable CAS number can make.
People sometimes think chemistry belongs in textbooks or distant labs. Dicyclopentadiene shows how daily life, commerce, and safety all depend on chemical clarity. Not every resin or plastic is the same—a missing digit in a chemical formula or CAS number sets off a ripple of problems. Workers could be exposed to new hazards; products might degrade early or even release toxins if the wrong ingredient gets mixed in. From an environmental angle, the right chemical identification can stop improper disposal that leads to pollution.
There are countless cases over the years where a spilled drum’s label was faded or the paperwork didn’t match. Emergency teams had to guess at response tactics. A correct CAS number, right there with the formula, would have saved precious time and avoided unnecessary risk. My own time in a small factory setting showed how proper labeling and documentation kept everyone safer and the workflow smoother, especially with chemicals like dicyclopentadiene, which can release irritating fumes if mishandled.
Responsible manufacturers and chemical handlers build trust with clear labeling, referenced formulas, and accurate CAS numbers. It creates an environment where workers know what’s in their hands without second-guessing, experts can check properties and hazards quickly, and regulations find compliance easier to enforce. In public databases, dicyclopentadiene’s formula and CAS number create a record that stakeholders—from health officers to environmental scientists—use daily. This shared language keeps processes efficient and people healthier.
Fixing gaps in chemical identification calls for a double focus: education and better systems. Workplaces benefit from training sessions on reading and using chemical labels, teaching staff why those strings of numbers and letters carry weight. Updated digital tracking systems catch errors before they cause harm, flagging mismatches and keeping inventories straight. Open channels between suppliers and buyers allow those little details to get confirmed, avoiding assumptions that lead to costly mistakes.
Dicyclopentadiene isn’t just a chemical—it’s a piece of a much larger system where details matter. That accurate formula and clear CAS number help keep that system running smoothly, with far-reaching benefits for health, safety, and honest business.
Anyone who has worked with dicyclopentadiene knows it’s an unpredictable character. Even on cool days, you can sometimes catch a whiff of that strong, irritating smell before you see the drums it comes in. That’s because this chemical gives off vapors that can cause headaches, dizziness, and even trigger asthma for people who are sensitive. It doesn’t help matters that dicyclopentadiene catches fire easily—a single spark, and you could have a real disaster on your hands. So you can't just toss a barrel in a back storeroom and call it a day.
Inside the warehouse, temperature matters more than most realize. This substance starts to polymerize—turn gummy, thicken, change character—if left in sunlight or on a loading bay that gets hot. That process not only ruins the chemical but can also make containers swell or even split. I’ve seen a barrel bulge out like a loaf of bread you forgot in the oven. To prevent this, experts recommend keeping the storage temperature below 30°C—ideally, even lower if you can pull it off. Forgetting this step puts both your product and the team at risk.
Shelving drums away from direct heat sources, welding stations, or exposed electrics is basic sense. More than a rulebook, it’s about not wanting to risk a fire on your watch. When dealing with dicyclopentadiene, using tight-sealed, properly labeled steel drums is standard for a reason. Anyone tempted to reuse an old plastic barrel to save a few bucks gambles with lives and property.
Loading this chemical onto a truck isn’t much easier. Roadside incidents happen, and dicyclopentadiene reacts with air and water. If a container leaks out in rain or humidity, it can create toxic fumes or slippery, hazardous spills. Federal agencies like OSHA and the Department of Transportation spell out strict labeling and handling guidelines. From experience, if drivers get lazy about securing loads, or skip the paperwork showing what’s inside, it throws responders into confusion in an emergency. Immediate knowledge of the cargo can be the difference between controlled cleanup and disaster.
Using refrigeration trucks helps keep temperatures low, and companies with good safety records often invest in these. For smaller-scale shipments, insulated containers and regular temperature checks work if folks stay vigilant. Spill kits and eye wash stations should ride along too—clean-up delays hurt people. Regular driver training and routine checks for container integrity save headaches in the long run.
Some people argue that the complicated protocols slow down business, but cutting corners with dicyclopentadiene comes with costs—hospital bills, regulatory fines, damaged community trust. Years ago, I visited a site that skipped regular inspections. A small leak led to a big fire, and the company never recovered its reputation.
Working with this chemical means taking every detail seriously from the start: sturdy drums, cool and ventilated warehouses, clear signage, staff training, and robust loading processes. Some companies in the industry are looking at automated sensor systems that track temperature and possible leaks. That kind of innovation will likely save resources and lives. Not everyone can make that investment, so for the rest of us, following established best practices stays essential.
Dicyclopentadiene, often called DCPD, makes regular appearances in the world of plastics, resins, and specialty chemicals. On the surface, it looks like a clean, colorless to pale yellow liquid with a powerful, almost pungent odor—think fueling up at an old gas station mixed with something sharper. Its main draw really comes from the way its twin rings (two cyclopentadiene molecules fused together) unlock a whole mess of chemical reactions, which gives manufacturers a chance to build everything from sturdy engineering plastics to robust coatings.
Pour DCPD out, and it flows slowly. It’s pretty heavy for an organic compound—about 0.98 g/cm³—which lines up with that double-ringed molecular structure. At room temperature, it tends to stick around in liquid form, but once the thermometer hits about 34 degrees Celsius, it starts to solidify. Not many folks want to deal with crystallized tanks, so in the real world, storage requires some heat tracing or insulation in colder climates.
DCPD boils off at 170 °C, so it handles most summer weather, but any kind of high-heat work needs proper ventilation. That signature odor doesn’t just announce its presence—breathing it in too much brings eye and throat irritation. Some colleagues of mine in the refinery business used to compare handling DCPD to working with strong gasoline, except if you spill DCPD, you don’t just get a bad smell—there’s a real risk of fire since it’s classified as flammable. Keeping it away from open ignition sources isn’t just factory protocol, it’s common sense. The flash point sits just above 32 °C, so in hot warehouses or outdoor drums, extra caution counts.
The magic of DCPD lies in its ability to break apart and put itself back together under the right conditions—a little heat or a catalyst, and DCPD “cracks” into cyclopentadiene monomers. That reversible dimerization makes it valuable in reaction setups that need a lot of cyclopentadiene quickly without hauling around drums of unstable monomer. You get a chemical workhorse that plays a central role in things like polyester resins, hydrocarbon resins, and even specialty rubbers.
DCPD doesn’t love water. You’ll never see it mixed into aqueous solutions, which means runoff from spills heads straight for drains or soil if not contained. It doesn’t hang around in the air for long; sunlight and oxygen break it down, though in closed spaces, vapor can hang at breathing height and become a health concern. In labs and plants, the approach focuses on containment, extraction fans, and personal protective equipment.
From a safety perspective, I’ve always advised treating DCPD with the same respect as other volatile organics. Its vapor is heavier than air, so it can collect near the ground and spread without you noticing—exactly how small leaks turn into unexpected accidents. Wearing gloves and goggles isn’t up for debate, and making sure drum seals are tight can save a whole lot of cleanup.
Waste handling with DCPD shows the importance of environmental responsibility. Facilities need spill kits designed for organic solvents, containment berms, and a well-practiced emergency plan. Some places staff a full team for regular monitoring, and they train for quick response. With storage and transport, labeling remains key so emergency crews know what they’re facing.
Dicyclopentadiene brings decades of field experience and science to industrial chemistry. Its unique properties drive both opportunity and the need for solid stewardship, so understanding the physical and chemical realities helps anyone working with it keep both people and projects on track. Keeping up with best practices, good ventilation, and responsible storage makes DCPD an asset, not a headache, across industries.
| Names | |
| Preferred IUPAC name | tricyclo[5.2.1.0^{2,6}]deca-3,8-diene |
| Other names |
DCPD Dicyclopentadiene, technical 1,2:5,6-dicyclopentadiene Dicyclopentadiene, stabilized Dicyclopenta-1,3-diene 4,7-methano-1H-indene 1,3,5,7-tetrahydro-1,4-methanoindene |
| Pronunciation | /daɪˌsaɪ.kloʊˌpɛn.təˈdaɪ.iːn/ |
| Identifiers | |
| CAS Number | 77-73-6 |
| Beilstein Reference | 1208257 |
| ChEBI | CHEBI:28325 |
| ChEMBL | CHEMBL50838 |
| ChemSpider | 5354707 |
| DrugBank | DB11338 |
| ECHA InfoCard | ECHA InfoCard: 100.006.850 |
| EC Number | 205-016-8 |
| Gmelin Reference | 778 |
| KEGG | C06447 |
| MeSH | Dicyclopentadiene |
| PubChem CID | 9257 |
| RTECS number | GV6930000 |
| UNII | Y50U3261KE |
| UN number | UN2048 |
| Properties | |
| Chemical formula | C10H12 |
| Molar mass | 132.20 g/mol |
| Appearance | White to pale yellow flaked solid |
| Odor | pungent |
| Density | 1.07 g/cm³ |
| Solubility in water | insoluble |
| log P | 2.82 |
| Vapor pressure | 0.38 mmHg (20°C) |
| Acidity (pKa) | 4.2 |
| Basicity (pKb) | pKb = 13.95 |
| Magnetic susceptibility (χ) | -9.80E-6 cm³/mol |
| Refractive index (nD) | 1.512 |
| Viscosity | Viscosity: 1.57 mPa·s (25 °C) |
| Dipole moment | 0.36 D |
| Thermochemistry | |
| Std molar entropy (S⦵298) | 266.5 J·mol⁻¹·K⁻¹ |
| Std enthalpy of formation (ΔfH⦵298) | -16.3 kJ/mol |
| Std enthalpy of combustion (ΔcH⦵298) | -3140 kJ/mol |
| Pharmacology | |
| ATC code | D01AE17 |
| Hazards | |
| GHS labelling | GHS02, GHS07, GHS08 |
| Pictograms | GHS02,GHS07 |
| Signal word | Danger |
| Hazard statements | H226, H304, H315, H319, H335 |
| Precautionary statements | P210, P233, P240, P241, P242, P243, P261, P264, P271, P273, P280, P301+P310, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P312, P331, P332+P313, P333+P313, P362+P364, P370+P378, P403+P235, P405, P501 |
| NFPA 704 (fire diamond) | 3-2-2-W |
| Flash point | > 90°C (194°F) |
| Autoignition temperature | 446 °C |
| Explosive limits | 1.1–6.7% |
| Lethal dose or concentration | LD50 oral rat 2820 mg/kg |
| LD50 (median dose) | 4,000 mg/kg (rat, oral) |
| NIOSH | GG0400000 |
| PEL (Permissible) | 5 ppm |
| REL (Recommended) | 5 ppm |
| IDLH (Immediate danger) | 250 ppm |
| Related compounds | |
| Related compounds |
Cyclopentadiene Fullerene Adamantane Cubane Twistane |
