Nellite

Synonyms

Diamidafos [ANSI]; Diamidaphos; Diamidfos; Diamidofos; Dowco 169; O-Phenyl-N,N'-dimethyl phosphorodiamidate; Phenyl N,N'-dimethylphosphorodiamidate; Phosphorodiamidic acid, N,N'-dimethyl-, phenyl ester; [ChemIDplus]

Category

Organophosphate Insecticides

Description

Colorless or white odorless solid; [HSDB]

Sources/Uses

Used as soil fumigant and nematocide; [HSDB]

Comments

A mild skin irritant; Depressed erythrocyte, plasma, and brain cholinesterase in 90 day animal feeding studies; [HSDB] “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]

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

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]

0.000362 mm Hg

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)