2,4-D isopropyl ester

Agent Name
2,4-D isopropyl ester
CAS Number
Major Category
2,4-D isopropyl ester formula graphical representation
2,4-D esters; 2,4-D, isopropyl ester; 2,4-D-isopropyl; 2,4-Dichlorophenoxyacetic acid, isopropyl ester; Acetic acid, (2,4-dichlorophenoxy)-, 1-methylethyl ester; Acetic acid, (2,4-dichlorophenoxy)-, isopropyl ester; Amchem Weed Killer 650; Barber's Weed Killer (Ester Formulation); Bridgeport Spot Weed Killer; Chemical Insecticide's Isopropyl Ester of 2,4-D Liquid Concentrate; Crop Rider 3-34D-2; Crop Rider 3.34D; Esteron 44; Isopropyl (2,4-dichlorophenoxy)acetate; Isopropyl 2,4-D ester; Isopropylester kyseliny 2,4-dichlorfenoxyoctove [Czech]; Monsanto 2,4-D Isopropyl Ester; Niagara Estasol; Parsons 2,4-D Weed Killer Isopropyl Ester; Swift's Gold Bear 44 Ester; Weedone 128; [ChemIDplus] 2,4-D IPE; [Reference #1]
Herbicides, Chlorophenoxy
Colorless liquid; pure form can be solid; mp = 5-10, 20-25 deg C (two forms); [HSDB] Colorless liquid; mp = 5-10 deg C; [MSDSonline] Pale amber liquid; [Reference #1]
2,4-D and derivatives: Used as herbicide for pastures, rangelands, cereals, corn, rice, nuts, turf, and aquatic, industrial, and commercial areas; [HSDB] Supported by California Citrus Quality Council (CCQC) for selected uses on citrus fruits; [Reference #1]
A skin and eye irritant; The esters of 2,4-D are hydrolyzed rapidly in the body to 2,4-D; Do not accumulate in mammals; Plasma half-life is about 1 day; Analysis of 2,4-D as esters and amine salts in 1982 found the esters more highly contaminated with dioxins; [HSDB] The acid form (2,4-D) is used as representative of the salts and esters due to close similarities in relative toxicities; [Reference #1] See "2,3,7,8-Tetrachlorodibenzo-p-dioxin." See "2,4D."
Reference Link #1
Biomedical References

Exposure Assessment

Vapor Pressure
0.000232 mm Hg
Lethal Concentration
LC50 (rat) > 4,970 mg/m3

Adverse Effects

Hepatoxic (a) from occupational exposure (secondary effect) or (b) in animal studies or in humans after ingestion

Diseases, Processes, and Activities Linked to This Agent


Industrial Processes with risk of exposure: