Educational content for trained professionals. Not a Safety Data Sheet, not medical advice. In an emergency, call your local poison control or emergency services immediately. Terms of use.

(2,4-Dichlorophenoxy)Acetic Acid

Also known as: 2,4-dichlorophenoxyacetic acid · 94-75-7 · 2-(2,4-dichlorophenoxy)acetic acid · 2,4-D

CAS No.
94-75-7
Formula
C8H6Cl2O3
Molar mass
221.03 g/mol
PubChem CID
1486
GHS pictograms
GHS pictogram: CorrosiveCorrosive
GHS pictogram: Harmful / IrritantHarmful / Irritant
GHS pictogram: Health hazardHealth hazard
GHS pictogram: Environmental hazardEnvironmental hazard
2D structure of (2,4-Dichlorophenoxy)Acetic Acid
2D structure · PubChem CID 1486

Summary

(2,4-Dichlorophenoxy)Acetic Acid (C8H6Cl2O3), CAS 94-75-7. Common in labs and industry. Read on for hazards, storage, PPE and mixing rules.

Background

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Hazards

GHS pictogram: Corrosive
Corrosive (GHS05)

Attacks skin, eyes and materials.

GHS pictogram: Harmful / Irritant
Harmful / Irritant (GHS07)

May cause skin, eye or respiratory irritation.

GHS pictogram: Health hazard
Health hazard (GHS08)

Serious long-term health effects (CMR, respiratory sensitizer).

GHS pictogram: Environmental hazard
Environmental hazard (GHS09)

Toxic to aquatic organisms.

Hazard statements

  • H302: Harmful if swallowed [Warning Acute toxicity, oral]
  • H317: May cause an allergic skin reaction [Warning Sensitization, Skin]
  • H318: Causes serious eye damage [Danger Serious eye damage/eye irritation]
  • H335: May cause respiratory irritation [Warning Specific target organ toxicity, single exposure
  • H412: Harmful to aquatic life with long lasting effects [Hazardous to the aquatic environment, long-term hazard]
  • H312
  • H334
  • H400
  • H410
  • H319: Causes serious eye irritation [Warning Serious eye damage/eye irritation]
  • H336: May cause drowsiness or dizziness [Warning Specific target organ toxicity, single exposure
  • H351: Suspected of causing cancer [Warning Carcinogenicity]
  • H361: Suspected of damaging fertility or the unborn child [Warning Reproductive toxicity]
  • H370: Causes damage to organs [Danger Specific target organ toxicity, single exposure]
  • H372: Causes damage to organs through prolonged or repeated exposure [Danger Specific target organ toxicity, repeated exposure]

Storage

Temperature

Keep at room temperature, below 30 °C, out of direct heat.

Ventilation

Store somewhere well-ventilated and away from any ignition source.

Containers

Metal drums or tinted glass, tightly sealed.

Keep away from

Strong acids, strong bases and powerful oxidizers.

Personal protective equipment

Gloves

Nitrile or butyl, at least 0.4 mm thick.

Eye protection

Safety goggles with side shields.

Respirator

A2 organic-vapor cartridge if the room isn't well ventilated.

Occupational exposure limits (HSE)

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EU harmonised classification (ECHA C&L)

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Transport

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FDA recalls & enforcement

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Compatibilities

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Practical safety notes

  • Corrosive. Wear chemical goggles, faceshield and chemical-resistant gloves. Have an eyewash within reach.
  • Irritant / harmful. Ventilate the workspace and avoid skin contact.
  • Serious health hazard (carcinogen, mutagen, reprotoxic, respiratory sensitizer). Substitute if possible; otherwise closed systems and medical surveillance.
  • Environmental hazard. Do not release to sewers or waterways; collect for hazardous waste disposal.

Derived from the GHS classification shown above. These notes are generic guidance and do not replace the manufacturer's SDS or your local risk assessment.

FAQ

Is (2,4-Dichlorophenoxy)Acetic Acid flammable?+

(2,4-Dichlorophenoxy)Acetic Acid (CAS 94-75-7) does not carry the GHS02 flame pictogram in our records. Always confirm with the manufacturer's SDS section 9 (flash point) before assuming a product is non-flammable.

What PPE should I wear when handling (2,4-Dichlorophenoxy)Acetic Acid?+

Chemical-splash goggles and a faceshield, chemical-resistant gloves (nitrile or butyl) and an apron are the minimum. Work inside a fume hood or use a suitable respirator. Check SDS section 8 for material-specific breakthrough times.

How should (2,4-Dichlorophenoxy)Acetic Acid be stored?+

Store (2,4-Dichlorophenoxy)Acetic Acid (CAS 94-75-7) in tightly closed original containers, in a cool, dry, well-ventilated area away from incompatible materials. Segregate acids from bases and keep away from metals that can be attacked.

Is (2,4-Dichlorophenoxy)Acetic Acid dangerous for the environment?+

Yes. (2,4-Dichlorophenoxy)Acetic Acid carries the GHS09 environment pictogram. Do not release to drains, soil or waterways; collect residues for hazardous-waste disposal in line with local regulations.

Where can I find the official Safety Data Sheet for (2,4-Dichlorophenoxy)Acetic Acid?+

Official, up-to-date SDS documents are published by each manufacturer (Sigma-Aldrich, Merck, Thermo Fisher, VWR, Carl Roth, etc.) and by regulators such as ECHA and NIOSH. This page is an educational summary and does not replace the manufacturer's SDS.

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