2,4-D

E558515

2,4-D is a widely used synthetic herbicide, historically known as one of the main components of the defoliant Agent Orange used during the Vietnam War.

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Statements (50)

Predicate Object
instanceOf chlorophenoxy herbicide
herbicide
organic compound
synthetic auxin
abbreviationOf 2,4-dichlorophenoxyacetic acid
belongsToChemicalClass phenoxyacetic acids
causesInPlants uncontrolled cell division and growth
vascular tissue disruption
chemicalName 2,4-dichlorophenoxyacetic acid
classifiedByIARC Group 2B possible human carcinogen
commercializedIn 1940s
degradationProcess microbial degradation in soil
discoveredInDecade 1940s
exposureRoute dermal contact
ingestion
inhalation
hasChloroSubstitutionPattern 2,4-dichloro
hasEnvironmentalConcern non-target plant injury
potential water contamination
hasFunctionalGroup carboxylic acid
phenoxy
hasMolarMass 221.04 g/mol
hasMolecularFormula C8H6Cl2O3
hasSoilHalfLife on the order of days to weeks
hasSoilMobility moderately mobile
hasSubstituent chlorine
hasTargetSiteOfAction auxin receptors in plants
hasToxicityProfile moderate acute toxicity to humans
mechanismOfAction synthetic auxin mimic
modeOfAction disrupts plant growth regulation
regulatedBy United States Environmental Protection Agency NERFINISHED
regulatoryStatus widely registered herbicide worldwide
relativelySpares grasses
selectiveAgainst broadleaf weeds
usedAs defoliant component in Agent Orange
selective herbicide
usedDuringConflict Vietnam War NERFINISHED
usedFormulationType acid formulations
amine salt formulations
ester formulations
usedIn agriculture
cereal crop production
lawn care
turf management
usedOnCrop corn
pasture grasses
rice
sorghum
wheat
wasComponentOf Agent Orange NERFINISHED

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