Agent Name

3,3',4,4',5,5'-Hexachlorobiphenyl

CAS Number

32774-16-6

Formula

C12-H4-Cl6

Major Category

Other Classes

Synonyms

1,1'-Biphenyl, 3,3',4,4',5,5'-hexachloro-; 3,3',4,4',5,5'-Hexachloro-1,1'-biphenyl; 3,4,5,3',4',5'-Hexa coplanar polychlorinated biphenyl; 3,4,5,3',4',5'-Hexachlorobiphenyl; Biphenyl, 3,3',4,4',5,5'-hexachloro-; PCB 169; [ChemIDplus] UN2315

Category

Halogenated Polyaromatics

Description

White solid; [MSDSonline]

Sources/Uses

Found in commercial PCBs, their manufacturing facilities, and during destruction or degradation of products containing PCBs; [HSDB]

Comments

Emergency medical treatment: see PCB-PBB; A skin and eye irritant; Evidence of reproductive and developmental toxicity; Caused gross and histopathological changes to liver in high dose animal studies; [HSDB] See "Chlorodiphenyl (42% chlorine)." For IARC changes in 2016, see "Polychlorinated biphenyls" and the linked occupational disease.

Exposure Assessment
Vapor Pressure

5.81E-7 mm Hg

Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Polychlorinated biphenyls."

Adverse Effects
Reproductive Toxin

Yes

Dermatotoxin

Chloracne

IARC Carcinogen

Known Carcinogen

NTP Carcinogen

Anticipated Human Carcinogen

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

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Chemical Information

Search ChemIDplus

Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent: