Agent Name

Chlorbromuron

CAS Number

13360-45-7

Formula

C9-H10-Br-Cl-N2-O2

Major Category

Pesticides

Synonyms

1-(3-Chloro-4-bromophenyl)-3-methyl-3-methoxyurea; 3-(4-Bromo-3-chlorophenyl)-1-methoxy-1-methylurea; Bromex; Bromex (herbicide); C 6313; C-6313; Chlorobromuron [ISO-French]; Ciba 6313; Maloran; N'-(4-Bromo-3-chlorophenyl)-N-methhoxy-N-methylurea (8CI)(9CI); N-(4-Bromo-3-chlorophenyl)-N'-methoxy-N'-methylurea; Urea, 3-(4-bromo-3-chlorophenyl)-1-methoxy-1-methyl-; Urea, N'-(4-bromo-3-chlorophenyl)-N-methoxy-N-methyl-; [ChemIDplus]

Category

Herbicides, Urea Derivative

Description

Colorless or white solid; [HSDB] Colorless solid; [MSDSonline]

Sources/Uses

Used as a selective pre- and post-emergence herbicide for control of annual grasses and broad-leaved weeds in potatoes, legumes, cereals, and other crops; US production discontinued; [HSDB]

Comments

Urea-derived herbicides have low toxicity in animal feeding studies; May induce methemoglobinemia; No effect level in 90-day feeding studies of rats and dogs was 316 mg/kg diet; No significant dermal absorption; A skin and eye irritant; [HSDB] Systemic toxicity unlikely unless large amounts ingested; [EPA Pesticides, p. 122] An irritant; [MSDSonline]

Exposure Assessment
Vapor Pressure

3.97E-7 mm Hg

Lethal Concentration

LC50 (rat) > 1,050 mg/m3/6h

Adverse Effects
Methemoglobinemia

Methemoglobinemia, Secondary

Links to Other NLM Databases
Health Studies

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Toxicity Information

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Chemical Information

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