Agent Name

Chlorthal-dimethyl

Alternative Name

Dimethyl tetrachloroterephthalate

CAS Number

1861-32-1

Formula

C10-H6-Cl4-O4

Major Category

Pesticides

Synonyms

Dimethyl tetrachloroterephthalate; 1,4-Benzenedicarboxylic acid, 2,3,5,6-tetrachloro-, dimethyl ester; 2,3,5,6-Tetrachloroterephthalic acid dimethyl ester; 2,3,5,6-Tetrachlorphthalsaure-dimethylester [German]; Chlorthal dimethyl ester; Chlorthal-methyl; DAC 4; DAC 893; DCPA; DCPA (VAN); Dacthal; Dacthalor; Daktal [Czech]; Dimethyl 2,3,5,6-tetrachlorobenzene-1,4-dicarboxylate; Dimethyl 2,3,5,6-tetrachloroterephthalate; Dimethyl tetrachloro-1,4-benzenedicarboxylate; Dimethylester kyseliny tetrachlortereftalove [Czech]; Fatal; TCTP; Tetrachloroterephthalic acid dimethyl ester; Tetral; [ChemIDplus]

Category

Herbicides, Other

Description

Colorless solid; [HSDB] Colorless crystalline solid; [MSDSonline]

Sources/Uses

Used as selective pre-emergence herbicide for control of annual grasses broad-leaved weeds in turf, ornamentals, strawberries, cotton, soybeans, and field beans; [HSDB]

Comments

Because it is a possible carcinogen, mixers, loaders, and applicators using DCPA wettable powder are required to wear dust-mist respirators; [Reference #1]

Reference Link

EPA Pesticide Chemical Search

Exposure Assessment
Vapor Pressure

2.5E-6 mm Hg

Lethal Concentration

LC50 (rat) > 5,700 mg/m3/4h

Reference Link

European Food Safety Authority (EFSA): Active Substances in Plant Protection Products

Adverse Effects
Hepatotoxin

Hepatotoxin, Secondary

Links to Other NLM Databases
Health Studies

Human Health Effects from Hazardous Substances Data Bank:

Toxicity Information

Search TOXNET

Chemical Information

Search ChemIDplus

Related Information in HazMap
Processes

Industrial Processes with risk of exposure: