Agent Name

Aspon

CAS Number

3244-90-4

Formula

C12-H28-O5-P2-S2

Major Category

Pesticides

Synonyms

A 42; A 42 (VAN); ASP 51; Bis(O,O-di(n-propyl))phosphorothionic anhydride; Bis-O,O-di-n-propylphosphorothionic anhydride; E 8573; NPD; O,O,O,O-Tetra-n-propyl dithiopyrophosphate; O,O,O,O-Tetrapropyl dithiopyrophosphate; Propyl thiopyrophosphate; Propyl thiopyrophosphate (((PrO)2P(S))2O); Stauffer ASP-51; Tetra-n-propyl dithionopyrophosphate; Tetra-n-propyl dithiopyrophosphate; Tetrapropyl dithiopyrophosphate; Tetrapropyl thiodiphosphate; Tetrapropyl thiopyrophosphate (8CI); Tetrapropyldithiodifosfat [Czech]; Thiodiphosphoric acid (((HO)2P(S))2O), tetrapropyl ester; Thiodiphosphoric acid tetrapropyl ester (9CI); Thiopyrophosphoric acid (((HO)2PS)2O), tetrapropyl ester; Thiopyrophosphoric acid, tetrapropyl ester; [ChemIDplus]

Category

Organophosphate Insecticides

Description

Straw to amber-colored liquid; [HSDB] Amber liquid; [MSDSonline]

Sources/Uses

Used as insecticide and acaricide to protect lawns and turf; [HSDB]

Comments

Depressed cholinesterase activity in 90-day feeding study of rats at doses below lethal levels; Showed no evidence of mutagenicity; [HSDB] Effects in high-dose animal studies include convulsions and inhibition of true cholinesterase; [RTECS]

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

1.07E-5 mm Hg

Explanatory Notes

Flash point = 149 deg C; [HSDB]

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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Related Information in HazMap
Diseases

Occupational diseases associated with exposure to this agent:

Processes

Industrial Processes with risk of exposure: