Agent Name

Temephos

Alternative Name

Abate

CAS Number

3383-96-8

Formula

C16-H20-O6-P2-S3

Major Category

Pesticides

Synonyms

Abate; AC 52160; Abaphos; Abate; Abate 4-E; Abathion; American cyanamid AC 52,160; American cyanamid CL-52160; American cyanamid E.I. 52,160; Biothion; Bis-p-(O,O-dimethyl O-phenylphosphorothioate)sulfide; Bithion; CL 52160; Difenphos; Difos; Diphos; Diphos (pesticide); EI 52160; Ecopro 1707; Etidronsaeure; Experimental insecticide 52160; Lypor; Nephis; Nephis 1G; Nimitex; Nimitox; O,O'-(Thiodi-4,1-phenylene) O,O,O',O'-tetramethyl di(phosphorothioate); O,O'-(Thiodi-4,1-phenylene)bis(O,O-dimethyl phosphorothioate); O,O'-(Thiodi-4,1-phenylene)phosphorothioic acid O,O,O',O'-tetramethyl ester; O,O'-(Thiodi-p-phenylene) O,O,O',O'-tetramethyl bis(phosphorothioate); O,O'-(Thiodi-p-phenylene) O,O,O',O'-tetramethyl di(phosphorothioate); O,O,O',O'-Tetramethyl O,O'-thiodi-P-phenylene bis(phosphorothioate); O,O,O',O'-Tetramethyl O,O'-thiodi-p-phenylene diphosphorothioate; O,O-Dimethyl phosphorothioate O,O-diester with 4,4'-thiodiphenol; OMS 786; Phenol, 4,4'-thiodi-, O,O-diester with O,O-dimethyl phosphorothioate; Phosphorothioic acid, O,O'-(thiodi-p-phenylene) O,O,O',O'-tetramethyl ester (8CI); Procida; Swebat; Swebate; Temefos; Temefosum [INN-Latin]; Tetrafenphos; Tetramethyl O,O'-thiodi-p-phenylene phosphorothioate; [ChemIDplus]

Category

Organophosphate Insecticides

Description

White, crystalline solid or liquid (above 87 degrees F). [insecticide] [Note: Technical grade is a viscous, brown liquid.]; [NIOSH]

Sources/Uses

Used to kill mosquito, midge, and black fly larvae in lakes, ponds, and wetlands; also used to kill fleas and human lice; [EXTOXNET]

Comments

Classified as "slightly toxic" with an LD50 of 5 gm/kg for the 2% powder formulation; [EXTOXNET]

Reference Link

EXTOXNET PIP - TEMEPHOS

Exposure Assessment
BEI

Cholinesterase activity in red cells = 70% of individual's baseline, sample time discretionary; [ACGIH]

Skin Designation (ACGIH)

Yes

TLV (ACGIH)

1 mg/m3, inhalable fraction and vapor

PEL (OSHA)

15 mg/m3(total dust), 5 mg/m3(respirable fraction)

Vapor Pressure

7e-08 mm Hg

Reference Link

EPA REDs: Temephos - 2011 update

Adverse Effects
Other Poison

Organophosphate

ACGIH Carcinogen

Not Classifiable

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

Chemical Information

Search ChemIDplus

Biomedical References

Search PubMed

Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure: