Agent Name |
Isoprene |
CAS Number |
78-79-5 |
Formula |
C5-H8 |
Major Category |
Plastics & Rubber |
Synonyms |
1,3-Butadiene, 2-methyl-; 2-Methyl-1,3-butadiene; 2-Methylbutadiene; 2-Methyldivinyl; 3-Methyl-1,3-butadiene; Isopentadiene; beta-Methylbivinyl; UN1218; [ChemIDplus] |
Category |
Other Monomers |
Description |
Colorless liquid with a mild, aromatic odor; [HSDB] |
Sources/Uses |
Used as a monomer to manufacture polyisoprene and butyl rubber; [HSDB] |
Comments |
An irritant to the skin, eyes, and mucous membranes; Causes CNS depression at high concentrations; [HSDB] If left on clothes, may cause reddening of skin; [CHRIS] Can affect the CNS, resulting in respiratory depression; [ICSC] |
Exposure Assessment |
Skin Designation (ACGIH) |
Not evaluated |
Vapor Pressure |
550 mm Hg |
Lethal Concentration |
LC50 (rats) = 180,000 mg/m3/4H |
Flammability (NFPA) |
4: burns readily |
Adverse Effects |
Dermatotoxin |
Skin Burns |
Neurotoxin |
CNS Solvent Syndrome |
IARC Carcinogen |
Possible Carcinogen |
Links to Other NLM Databases |
Health Studies |
Human Health Effects from Hazardous Substances Data Bank: ISOPRENE
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