C8H6Cl2O3
221.03 g/mol
AgrochemicalDanger
2,4-dichlorophenoxyacetic acid
CAS94-75-7EC202-361-1
Category
Agrochemical
Compound Class
Organic Acid
Primary Use
Systemic herbicide for weed control
2,4-Dichlorophenoxyacetic acid is a systemic herbicide widely used for weed control in cereal and other crops. It functions by mimicking natural plant hormones, leading to uncontrolled growth and eventual death of susceptible broadleaf weeds.
Weed control in cereal cropsWeed control in other agricultural cropsHerbicide active ingredient in registered pesticide products
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
StrongSame Parent
2,4-D-dimethylammonium
CAS2008-39-1
systemic herbicide for broadleaf weeds
ReferenceSame Category
2,4-D-butyl
CAS94-80-4
Herbicide for weed control
ReferenceSame Category
2,4-DB
CAS94-82-6
selective post-emergence broadleaf herbicide
ReferenceSame Category
4-Amino-3,5-dichloro-6-fluoro-2-pyridone
CAS94133-62-7
Agrochemical intermediate for fluroxypyr synthesis
ReferenceSame Category
2-Fluoro-6-trifluoromethylpyridine
CAS94239-04-0
Crop protection intermediate
Referencestereoisomer of
2-(2,4-dichloro-3,5,6-trideuteriophenoxy)acetic acid
CAS202480-67-9
herbicide reference standard
Referencestereoisomer of
2,4-D-sodium
CAS2702-72-9
selective herbicide
Referencestereoisomer of
2,4-DICHLOROPHENOXY-3,5,6-D3-ACETIC-D2 ACID
CAS352438-69-8
Deuterated internal standard for herbicide analysis
Related Reading
Safety Reference
Danger
H302Harmful if swallowed
H317May cause an allergic skin reaction
H318Causes serious eye damage
H335May cause respiratory irritation
H412Harmful to aquatic life with long lasting effects
H312Harmful in contact with skin
H334May cause allergy or asthma symptoms or breathing difficulties if inhaled
H400Very toxic to aquatic life
H410Very toxic to aquatic life with long lasting effects
H319Causes serious eye irritation
H336May cause drowsiness or dizziness
H351Suspected of causing cancer
H361Suspected of damaging fertility or the unborn child
H370Causes damage to organs
H372Causes damage to organs through prolonged or repeated exposure
H402Harmful to aquatic life
H313May be harmful in contact with skin
H316Causes mild skin irritation
H320Causes eye irritation
H332Harmful if inhaled
H373May cause damage to organs through prolonged or repeated exposure
Customs Tariff Classification
The international HS code for 2,4-dichlorophenoxyacetic acid (CAS 94-75-7) is 2918.99.
HS code (international, 6-digit)
2918.99
EU CN code (8-digit)
2918 99 90
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
2-(2,4-dichlorophenoxy)acetic acid
InChIKey
OVSKIKFHRZPJSS-UHFFFAOYSA-N
SMILES
C1=CC(=C(C=C1Cl)Cl)OCC(=O)O
Synonyms (152)
- CFA
- U-5043
- 2,4-D
- 2,4-D (Standard)
- 2,4-D Mecoprop
- 2,4-D acid
- 2,4-D, PESTANAL(R)
- 2,4-Dichlorphenoxyessigsaure
- 2,4-PA
- 2,4-dichlorphenoxyacetic acid
- Acme LV 4
- Acme LV 6
- Acme amine 4
- Acme butyl ester 4
- Agricorn D
- Agrotect
- Aminopielik 50SL
- Amoxone
- Aqua-Kleen
- Atlas D
- B-Selektonon
- BH 2,4-D
- Barrage
- Barrage HF
- Basalcoat
- Brush-rhap
- Chipco turf herbicide D
- Chloroxone
- Citrus fix
- Crop rider
- Dacamine
- De-Pester Ded-Weed LV-2
- Debroussaillant 600
- Ded-Weed LV-69
- Deherban
- Dezormon
- Dichlorophenoxyacetic acid
- Diclordon
- Dicopur
- Dicotox
- Dormon
- Dormone
- ENT 8,538
- Emulsamine
- Emulsamine E-3
- Emulsamine bk
- Envert 171
- Envert dt
- Esteron 44 weed killer
- Esteron 76 BE
- Esteron 99
- Esteron brush killer
- Esterone
- Esterone four
- Estone
- Farmco
- Fernesta
- Fernimine
- Ferxone
- Foredex 75
- Green Cross Weed-No-More "80"
- Hedonal (the herbicide)
- Hedonal, herbicide
- Herbidal
- Huragan
- Ipaner
- Isadiamineyeom
- Lawn-keep
- Macondray
- Macondray Macrondray Miracle
- Macrondray
- Miracle
- Monosan
- Monosan herbi
- Mota Maskros
- Moxon
- Moxone
- Netagrone
- Netagrone 600
- Pennamine
- Pennamine D
- Phenox
- Pielik
- Planotox
- Planotox Plantgard
- Plantgard
- R-H Weed Rhap 20
- Red Devil Dry Weed Killer
- Rhodia
- Salvo
- Scott's 4-XD Weed Control
- Silvaprop 1
- Spritz-hormin/2,4-D
- Spritz-hormit/2,4-D
- Superormone concentre
- Tiller S
- Tributon
- U 46DP
- Uniso
- Vergemaster
- Verton
- Verton 2D
- Verton 38
- Verton D
- Vertron 2D
- Vidon 638
- Visko-rhap
- Visko-rhap low volatile 4l
- Weed tox
- Weed-B-gon
- Weed-Rhap
- Weed-Rhap A-4
- Weed-Rhap B-266
- Weed-Rhap B-4
- Weed-Rhap I-3.34
- Weed-Rhap LV-4-0
- Weed-ag-bar
- Weedar
- Weedatul
- Weedez wonder bar
- Weedone lv4
- Weedtrol
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