Chemical Detail

Chemical Name2,4-D isopropyl ester
Synonym(s)(2,4-Dichlorophenoxy)acetic acid isopropyl ester | 2,4-D-Isopropyl | 2,4-Dichlorophenoxyacetic acid isopropyl ester | AI3-16667 | 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 | Caswell No. 315AV | 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 | Isopropyl 2,4-dichlorophenoxyacetate | Monsanto 2,4-D Isopropyl Ester | NSC 521749 | Niagara Estasol | Parsons 2,4-D Weed Killer Isopropyl Ester | Swift's Gold Bear 44 Ester | Weedone 128
CASRN94-11-1
De minimis Limit %0.1
M,P/OU Threshould (lb)25,000/10,000
Listing TypeIndividually listed chemical
Effective Date1995-01-01
Chemical QualifierNo
MetalNo
Chemical of Special ConcernNo
Per- or Polyfluoroalkyl SubstanceNo
Structural image
Structural representation of 2,4-D isopropyl ester

Rulemaking Changes Affecting This Chemical

StatusEffective Reporting YearFR Proposed RuleFR Final Rule
Added199559 FR 1788 (1/12/1994)59 FR 61432 (11/30/1994)

Basis of OSHA Carcinogens

IARCNTPOSHA-Z
2B