Agent Name

Chlorbufam

CAS Number

1967-16-4

Formula

C11-H10-Cl-N-O2

Major Category

Pesticides

Synonyms

1-Butyn-3-yl m-chlorophenylcarbamate; 1-Methyl-2-propynyl m-chlorocarbanilate; 1-Methyl-2-propynyl m-chlorophenylcarbamate; 1-Methylprop-2-ynyl 3-chlorocarbanilate; 1-Methylprop-2-ynyl 3-chlorophenylcarbamate; 1-Methylpropynyl 3-chlorophenylcarbamate; 1-Methylpropynyl ester of 3-chlorophenylcarbamic acid; 3-Butyn-2-ol, m-chlorocarbanilate; 3-Butynyl-m-chlorocarbanilate; 3-Chlorophenylcarbamic acid 1-methylpropynyl ester; 3-Chlorphenyl-carbamidsaure-butin-(1)-yl(3)-ester [German]; BICP; BIPC; BIPC (the herbicide); Butyn-1-ol-3-ester of m-chlorophenylcarbamic acid; Carbamic acid, (3-chlorophenyl)-, 1-methyl-2-propynyl ester; Carbanilic acid, m-chloro-, 1-methyl-2-propynyl ester; Chlorbufame [ISO-French]; Chlorbupham; Chlorobufam; Grisemin; Grisin; IEM-1-15; Isobutinyl-N-(3-chlorphenyl)-carbamat [German]; [ChemIDplus] UN2757

Category

Herbicides, Carbamate

Description

Colorless solid; [HSDB]

Sources/Uses

Used as selective pre-emergence herbicide for control of grasses and broad-leaved weeds in onions, bulb flowers, and other crops; Usually used in combination with other herbicides; WHO classifies Chlorbufam as "believed to be obsolete or discontinued"; [HSDB]

Comments

The hydrolysis product is 3-chloroaniline, one of the most common causes of industrial methemoglobinemia in the past; [HSDB] May cause irritation; May cause CNS depression; [MSDSonline] See "3-Chloroaniline."

Restricted

No longer registered as a pesticide for use in the US; [HSDB]

Exposure Assessment
Vapor Pressure

1.58E-5 mm Hg

Explanatory Notes

The Guide in the Emergency Response Guidebook is for "Carbamate pesticide, solid, toxic."

Adverse Effects
Methemoglobinemia

Methemoglobinemia, Secondary

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
Processes

Industrial Processes with risk of exposure: