Agent Name |
Dibenzo(a,i)pyrene |
CAS Number |
189-55-9 |
Formula |
C24-H14 |
Major Category |
Other Classes |
Synonyms |
1,2,7,8-Dibenzopyrene; 1,2:7,8-Dibenzpyrene; 3,4:9,10-Dibenzopyrene; 3,4:9,10-Dibenzpyrene; Benzo(r,s,t)pentaphene; Benzo(rst)pentaphene; DB(a,i)P; Db(a,i)p; Dibenz(a,i)pyrene; Dibenzo(b,h)pyrene; [ChemIDplus] |
Category |
Polycyclic Aromatic Hydrocarbons |
Description |
Greenish-yellow solid; [HSDB] |
Sources/Uses |
Used as a research chemical; [HSDB] Present in fossil fuels, cigarette smoke, and coal tar; [CHEMINFO] |
Comments |
May cause irritation; [MSDSonline] See "POLYCYCLIC AROMATIC HYDROCARBONS." |
Exposure Assessment |
Vapor Pressure |
1.78 x 10 -11 mm Hg |
Explanatory Notes |
NFPA flammability code = 0; [MSDSonline] |
Flammability (NFPA) |
0: will not burn |
Adverse Effects |
IARC Carcinogen |
Possible Carcinogen |
Links to Other NLM Databases |
Health Studies |
Human Health Effects from Hazardous Substances Data Bank: DIBENZO(A,I)PYRENE
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