Agent Name

Difenzoquat methyl sulfate

CAS Number

43222-48-6

Formula

C17-H17-N2.C-H3-O4-S

Major Category

Pesticides

Synonyms

Difenzoquat metilsulfate [ISO]; 1,2-Dimethyl-3,5-diphenyl-1H-pyrazolium methyl sulfate; AC 84777; Avenge; Difenzoquat methyl sulphate; Difenzoquat metilsulfate; Finaven; Yeh-Yan-Ku; 1,2-Dimethyl-3,5-diphenylpyrazolium methylsulphate; 1H-Pyrazolium, 1,2-dimethyl-3,5-diphenyl-, methyl sulfate; [ChemIDplus]

Category

Herbicides, Other

Description

Colorless to pale yellow odorless solid; [Reference #1] Colorless solid; [Aldrich MSDS]

Sources/Uses

Used as a herbicide and agricultural fungicide; [Merck Index] Used as selective post-emergence herbicide for control of wild oats in barley and wheat; The ion, CAS# 49866-87-7, is of no known commercial use; [Reference #1]

Comments

Causes nucleated red blood cells, changes in serum composition, and changes to the liver in repeated oral dose study of rats; [RTECS] No adverse hematological, clinical chemistry, or histopathological changes observed in 90-day feeding study of dogs; Decreased weight gain was only compound related effect noted in 2-year feeding study of rats; [Reference #1] Toxic by ingestion and skin absorption; May cause irritation; [Aldrich MSDS]

Reference Link

EPA Pesticide Chemical Search

Exposure Assessment
Lethal Concentration

LC50 (rat) = 500 mg/m3

Links to Other NLM Databases
Toxicity Information

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Chemical Information

Search ChemIDplus

Related Information in HazMap
Processes

Industrial Processes with risk of exposure: