Sulprofos

Synonyms

BAY-NTN-9306; Bayer NTN 9306; Bolstar; Helothion; Mercaprofos; Mercaprophos; Merpafos; NTN 9306; O-Ethyl O-(4-(methylmercapto)phenyl)-S-n-propylphosphorothionothiolate; O-Ethyl O-(4-(methylthio)phenyl) S-propyl phosphorodithioate; O-Ethyl O-(4-(methylthio)phenyl)phosphorodithioic acid S-propyl ester; [ChemIDplus]

Category

Organophosphate Insecticides

Description

Tan-colored liquid with a sulfide-like odor; [NIOSH]

Sources/Uses

Used to control insects on alfalfa, cotton, corn, peanuts, tobacco, and tomatoes; effective against beet armyworm; [ACGIH]

Comments

High concentrations may cause CNS effects; Cholinesterase inhibitor; [ICSC] “The average of two baseline respective cholinesterase activity determinations three days apart, with no exposures to enzyme inhibiting pesticides for at least 30 days, is recommended for each worker prior to exposure to cholinesterase inhibitors because of large inter-individual differences in published baseline values. To be established at least once a year. Removal from workplace exposures is recommended until the cholinesterase activity returns to within 20% of baseline.” [TLVs and BEIs]

Biomedical References

Acetylcholinesterase activity in red blood cells = 70% of individual's baseline; Butylcholinesterase activity in serum or plasma = 60% of individual's baseline; Sample at end of shift; [TLVs and BEIs]

Yes

0.1 mg/m3, inhalable fraction and vapor

1.2E-06 mm Hg

Not Classifiable

Other Poison

Organophosphate

Diseases

Occupational diseases associated with exposure to this agent:

• Organophosphates & carbamates, acute poisoning

Processes

Industrial Processes with risk of exposure:

• Farming (Pesticides)