Agent Name |
Dicyclopentadiene |
CAS Number |
77-73-6 |
Formula |
C10-H12 |
Major Category |
Solvents |
Synonyms |
1,3-CPD; 1,3-Cyclopentadiene, dimer; 3a,4,7,7a-Tetrahydro-4,7-methanoindene; 4,7-Methano-1H-indene, 3a,4,7,7a-tetrahydro-; 4,7-Methanoindene, 3a,4,7,7a-tetrahydro-; Bicyclopentadiene; Biscyclopentadiene; Cyclopentadiene dimer; Dicyclopentadiene; Dicyklopentadien [Czech]; Dimer cyklopentadienu [Czech]; Tricyclo(5.2.1.0)-3,8-decadiene; alpha-Dicyclopentadiene (endo form); [ChemIDplus] UN2048; UN1993; UN2929 |
Category |
Aliphatics, Unsaturated |
Description |
Colorless, crystalline solid with a disagreeable, camphor-like odor; Note: A liquid above 90 degrees F; [NIOSH] |
Sources/Uses |
Used as a chemical intermediate for insecticides and other products; [ACGIH] Used as a monomer and curing agent in polymer production; [HSDB] |
Comments |
Exposed workers experienced headaches. [ACGIH] A skin, eye, and respiratory tract irritant; [ICSC] In animal experiments, calves are intoxicated at a dose of 250 mg/kg. [HSDB] |
Exposure Assessment |
Skin Designation (ACGIH) |
No |
TLV (ACGIH) |
5 ppm |
MAK |
0.5 ppm |
Vapor Pressure |
1.4 mm Hg |
Odor Threshold Low |
0.003 ppm |
Odor Threshold High |
0.01 ppm |
Lethal Concentration |
LC50 (rats) = 660 ppm/4h |
Explanatory Notes |
Detection odor threshold from AIHA (mean = 0.011 ppm); Flash point = 32 deg C; |
Flammability (NFPA) |
3: may ignite at ambient temperature |
Adverse Effects |
Hepatotoxin |
Hepatotoxin, Secondary |
Links to Other NLM Databases |
Health Studies |
Human Health Effects from Hazardous Substances Data Bank: DICYCLOPENTADIENE
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