Agent Name

Famphur

CAS Number

52-85-7

Formula

C10-H16-N-O5-P-S2

Major Category

Pesticides

Synonyms

AC 38023; American Cyanamid CL-38,023; American Cyanamid-38023; BO-Ana; CL-38023; Dovip; ENT 25,644; Famfur; Famofos; Famophos; Famophos warbex; Famphos; Fanfos; O,O-Dimethyl O-(p-(N,N-dimethylsulfamoyl)phenyl) phosphorothioate; O,O-Dimethyl O-(p-(dimethylsulfamoyl)phenyl) phosphorothioate; O,O-Dimethyl phosphorothioate O-ester with p-hydroxy-N,N-dimethylbenzenesulfonamide (8CI); O-(4-(Dimethylamino)sulfonyl)phenyl) O,O-dimethyl phosphorothioate; O-(4-((Dimethylamino)sulfonyl)phenyl) O,O-dimethylphosphorothioate; O-4-Dimethylsulfamoylphenyl O,O-dimethyl phosphorothioate; O-4-Dimethylsulphamoylphenyl O,O-dimethyl phosphorothioate; Phosphorothioic acid, O,O-dimethyl ester, O-ester with p-hydroxy-N,N-dimethylbenzenesulfonamide; Phosphorothioic acid, O-(4-((dimethylamino)sulfonyl)phenyl) O,O-dimethyl ester; Warbex; Warbexol; p-Hydroxy-N,N-dimethylbenzenesulfonamide ester with phosphorothioic acid O,O-dimethyl ester; [ChemIDplus] UN2783

Category

Organophosphate Insecticides

Description

Colorless solid; [HSDB]

Sources/Uses

Used as veterinary insecticide for grubs and lice; [HSDB]

Comments

A cholinesterase inhibitor; [Hawley] Caused inhibition of cholinesterase activity in rats, birds, and livestock; [HSDB] A highly toxic cholinesterase inhibitor; [CAMEO] No adverse effects to fertility observed in cattle; No information found with regards to teratogenicity or effects on lactation; [REPROTOX]

Restricted

Cancelled--no longer registered as a pesticide for use in the US; [HSDB]

Exposure Assessment
BEI

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

Vapor Pressure

1.36E-6 mm Hg

Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Organophosphorus pesticide, solid, toxic."

Adverse Effects
Other Poison

Organophosphate

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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Biomedical References

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Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure: