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2,4-dichlorophenoxyacetic acid (CAS 94-75-7) | ChemAbout

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Related Compounds

StrongSame Parent

2,4-D-dimethylammonium

systemic herbicide for broadleaf weeds

ReferenceSame Category

2,4-D-butyl

Herbicide for weed control

ReferenceSame Category

2,4-DB

selective post-emergence broadleaf herbicide

ReferenceSame Category

4-Amino-3,5-dichloro-6-fluoro-2-pyridone

Agrochemical intermediate for fluroxypyr synthesis

ReferenceSame Category

2-Fluoro-6-trifluoromethylpyridine

Crop protection intermediate

Referencestereoisomer of

2-(2,4-dichloro-3,5,6-trideuteriophenoxy)acetic acid

herbicide reference standard

Referencestereoisomer of

2,4-D-sodium

selective herbicide

Referencestereoisomer of

2,4-DICHLOROPHENOXY-3,5,6-D3-ACETIC-D2 ACID

Deuterated internal standard for herbicide analysis

Related Reading

Why Does One Chemical Intermediate End Up in Dozens of Pesticides? Inside the Reaction Interface Economy

A single pyridine intermediate feeds four different neonicotinoid insecticides. A single pyrazole acid feeds a whole family of SDHI fungicides. This isn't coincidence — it's the Reaction Interface Economy, the organizing logic behind modern agrochemical R&D and its supply chain.

Sourcing 2,4-dichlorophenoxyacetic acid?

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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.

Safety Reference

Corrosive

Harmful

Health Hazard

Environmental Hazard

Danger

H302Harmful if swallowed

H317

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)

May 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