Agent Name

Isobenzan

CAS Number

297-78-9

Formula

C9-H4-Cl8-O

Major Category

Pesticides

Synonyms

1,3,4,5,6,7,10,10-Octachloro-4,7-endo-methylene-4,7,8,9-tetrahydrophthalan; 1,3,4,5,6,7,10,10-Octachloro-4,7-endomethylene-4,7,8,9-tetrahydrophthalan; 1,3,4,5,6,7,8,8-Octachloro-1,3,3a,4,7,7a-hexahydro-4,7-methanoisobenzofuran; 1,3,4,5,6,7,8,8-Octachloro-2-oxa-3a,4,7,7a-tetrahydro-4,7-methanoindene; 1,3,4,5,6,7,8,8-Octachloro-4,7-methylene-3a,4,7,7a-tetrahydroisobenzofuran; 1,3,4,5,6,7,8,8-Octachloro-1,3,3a,4,7,7a-hexahydro-4,7-methanoisobenzofuran; 4,7-Methanoisobenzofuran, 1,3,4,5,6,7,8,8-octachloro-3a,4,7,7a-tetrahydro-; 4,7-Methanoisobenzofuran, 1,3,4,5,6,7,8,8-octachloro-1,3,3a,4,7,7a-hexahydro-; AI3-25545; Bas-4402; CP 14,957; ENT 25,545; ENT 25,545-X; Isobenzan [ISO:BSI]; OMS 206; Octachloro-hexahydro-methanoisobenzofuran; Octachlorohexahydro-4,7-methanoisobenzofuran; Omtan; Preparation 948; R 6700; SD 4402; Shell 4402; Shell WL 1650; Telodrin; WL 1650; [ChemIDplus]

Category

Organochlorine Pesticides

Description

White to light brown solid; [HSDB] Colorless crystals; [MSDSonline]

Sources/Uses

Used as insecticide; [Merck Index] Used as a broad spectrum contact and stomach insecticide; [INCHEM]

Comments

Highly toxic by skin absorption, inhalation, and ingestion; Very slowly eliminated by the human body, with a blood half-life of 2.77 years; May cause convulsions and seizures; [CAMEO] Over stimulates the CNS causing convulsions; Slowly eliminated by the body; [INCHEM] May cause irritation; [MSDSonline]

Restricted

No longer registered as a pesticide for use in the US; [HSDB] Restricted due to environmental persistence and toxicity; [INCHEM]

Exposure Assessment
Vapor Pressure

2.92E-6 mm Hg

Adverse Effects
Other Poison

Organochlorine Pesticide

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

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Chemical Information

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Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure: