Agent Name

Heptachlor epoxide

CAS Number

1024-57-3

Formula

C10-H5-Cl7-O

Major Category

Pesticides

Synonyms

1,4,5,6,7,8,8-Heptachloro-2,3-epoxy-2,3,3a,4,7,7a-hexahydro-4,7-methanoindene; 1,4,5,6,7,8,8-Heptachloro-2,3-epoxy-3a,4,7,7a-tetrahydro-4,7-methanoindan; 2,3,4,5,6,7,7-Heptachloro-1a,1b,5,5a,6,6a-hexahydro-2,5-methano-2H-indeno(1,2-b)oxirene; 2,5-Methano-2H-oxireno(a)indene, 2,3,4,5,6,7,7-heptachlor-1a,1b,5,5a,6,6a-hexahydro-; 2,5-Methano-2H-oxireno(a)indene, 2,3,4,5,6,7,7-heptachloro-1a,1b,5,5a,6,6a-hexahydro-; Epoxyheptachlor; HCE; Velsicol 53-CS-17; 2,5-Methano-2H-indeno(1,2-b)oxirene, 2,3,4,5,6,7,7-heptachloro-1a,1b,5,5a,6,6a-hexahydro-, (1aalpha,1bbeta,2alpha,5alpha,5abeta,6beta,6aalpha)-; 4,7-Methanoindan, 1,4,5,6,7,8,8-heptachloro-2,3-epoxy-3a,4,7,7a-tetrahydro-; [ChemIDplus]

Category

Organochlorine Pesticides

Description

Crystalline solid; [MSDSonline]

Sources/Uses

An environmental contaminant; Not available as a commercial product; [ACGIH]

Comments

An oxidation product of heptachlor produced by plants and animals following exposure to heptachlor; it may persistent in the soil for more than 15 years; [ChemIDplus] TLV basis = liver damage in animal studies; [ACGIH] May cause irritation; Readily absorbed through skin; Effects in high-dose animal studies include convulsions; [MSDSonline] See "Heptachlor."

Exposure Assessment
Skin Designation (ACGIH)

Yes

TLV (ACGIH)

0.05 mg/m3

Odor Threshold Low

0.02 mg/m3

Explanatory Notes

VP = 1.95E-05 mm Hg at 30 deg C; [ChemIDplus] Odor threshold from HSDB;

Adverse Effects
Hepatotoxin

Hepatotoxin, Secondary

Other Poison

Organochlorine Pesticide

IARC Carcinogen

Possible Carcinogen

ACGIH Carcinogen

Confirmed Animal

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:

Processes

Industrial Processes with risk of exposure: