2,4-Dichlorophenoxyacetic acid
2,4-Dichlorophenoxyacetic acid (CAS: 94-75-7), with the linear formula Cl₂C₆H₃OCH₂CO₂H and a molecular weight of 221.04 g/mol, is a key organic building block. This compound is primarily recognised for its utility in chemical synthesis and research applications. Its properties make it a valuable intermediate in various chemical processes, particularly within the realm of organic chemistry and materials science.
- IUPAC
- 2,4-D
- Synonyms
- Cl2C6H3OCH2CO2H2,4-D

Chemical Synthesis
Serves as a crucial intermediate in the synthesis of more complex organic molecules. Its structure allows for various functional group transformations, making it valuable in multi-step synthetic routes.
Research and Development
Utilised in laboratory settings for exploring new chemical reactions and developing novel compounds. Its well-defined properties facilitate its use in academic and industrial research.
Plant Cell Culture Studies
Tested for suitability in plant cell culture applications, suggesting potential use in research related to plant biology and growth regulation studies.
| Molecular weight | 221.04 |
|---|---|
| Linear formula | Cl2C6H3OCH2CO2H |
| Assay | 97% |
| Vapour pressure | 0.4 mmHg (160 °C) |
| Suitability | plant cell culture tested |
| Melting point | 136-140 °C(lit.) |


Hazard statements
- 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
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P273Avoid release to the environment
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Transport (UN / ADR) | UN 3077 9 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-37-41-43-52/53 |
| Safety statements (S) | 24/25-26-36/37/39-46-61 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 2,4-Dichlorophenoxyacetic acid primarily used for?
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2,4-Dichlorophenoxyacetic acid is primarily used as a chemical intermediate in organic synthesis and in research and development laboratories. It has also been tested for suitability in plant cell culture.
What are the CAS number and formula for 2,4-Dichlorophenoxyacetic acid?
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The CAS number for 2,4-Dichlorophenoxyacetic acid is 94-75-7, and its linear formula is Cl₂C₆H₃OCH₂CO₂H.
What grade and purity does Tech Serve Solutions supply for 2,4-Dichlorophenoxyacetic acid?
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Tech Serve Solutions supplies 2,4-Dichlorophenoxyacetic acid with an assay of 97%. We do not represent this product as USP, BP, EP, or other pharmacopoeia grades unless explicitly stated in the product specifications.
How should 2,4-Dichlorophenoxyacetic acid be handled safely?
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Handling requires caution due to its hazards. It is harmful if swallowed, may cause an allergic skin reaction, causes serious eye damage, and can cause respiratory irritation. Always use appropriate personal protective equipment, including a dust mask (N95 US), eyeshields, face shields, and gloves. Avoid breathing dust/fume/gas/mist/vapours/spray. Wash thoroughly after handling. See safety data sheet for full details.
How is 2,4-Dichlorophenoxyacetic acid packed, shipped, and exported?
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2,4-Dichlorophenoxyacetic acid is typically packed in accordance with international shipping regulations. As a global supplier, Tech Serve Solutions exports chemicals worldwide, adhering to all relevant transport and customs requirements.
How can I request a sample or quote for 2,4-Dichlorophenoxyacetic acid?
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To request a sample or a quote for 2,4-Dichlorophenoxyacetic acid, please contact our sales department through the website or by phone, providing your specific requirements and shipping details.
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