3,4-Dichlorocinnamic acid
3,4-Dichlorocinnamic acid (CAS: 1202-39-7) is a halogenated aromatic carboxylic acid with the molecular formula C9H6Cl2O2 and a molecular weight of 217.05 g/mol. This compound serves as a valuable building block in organic synthesis. Its primary known application involves its use in the preparation of specific types of chemical compounds, such as indolopiperidine CCR2B receptor antagonists, contributing to research in medicinal chemistry.
- Synonyms
- Cl2C6H3CH=CHCO2H

Intermediate in Organic Synthesis
3,4-Dichlorocinnamic acid functions as a key intermediate in the synthesis of complex organic molecules. Its chemical structure allows for various transformations crucial in the development of novel compounds.
Preparation of Receptor Antagonists
This compound has been utilised in the synthesis of indolopiperidine CCR2B receptor antagonists. These antagonists are investigated for their potential therapeutic applications, particularly in areas of inflammation and immunological research.
Research and Development
As a speciality chemical, 3,4-Dichlorocinnamic acid is employed in research laboratories for exploring new chemical reactions and developing novel chemical entities. It is a useful component for structure-activity relationship studies.
| Molecular weight | 217.05 |
|---|---|
| Linear formula | Cl2C6H3CH=CHCO2H |
| Assay | 97% |
| Solubility | ethanol: soluble25 mg/mL, very slightly hazy, faintly yellow |
| Application | 3,4-Dichlorocinnamic acid was used in the preparation of indolopiperidine CCR2B receptor antagonists possessing a conformationally restricted C-5 linker chain and a restricted piperidine ring1. |
| Melting point | 218-220 °C(lit.) |
| Protective equipment | Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
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 3,4-Dichlorocinnamic acid used for?
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3,4-Dichlorocinnamic acid is used as a building block in organic synthesis, notably in the preparation of indolopiperidine CCR2B receptor antagonists and other complex organic molecules for research and development purposes.
What is the CAS number and formula for 3,4-Dichlorocinnamic acid?
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The CAS number for 3,4-Dichlorocinnamic acid is 1202-39-7. The linear formula is Cl2C6H3CH=CHCO2H.
What grade and purity does Tech Serve Solutions supply for 3,4-Dichlorocinnamic acid?
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Tech Serve Solutions supplies 3,4-Dichlorocinnamic acid with a purity of 97% (assay). This product is not classified as USP, BP, or EP grade; it is intended for laboratory and research use.
What are the safety and handling precautions for 3,4-Dichlorocinnamic acid?
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Handling 3,4-Dichlorocinnamic acid requires appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter should be used. The compound is classified with WGK 3 in Germany.
Does Tech Serve Solutions export 3,4-Dichlorocinnamic acid?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including 3,4-Dichlorocinnamic acid, catering to international markets.
How can I request a quote or sample for 3,4-Dichlorocinnamic acid?
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To request a quote or a sample of 3,4-Dichlorocinnamic acid, please visit the Tech Serve Solutions website or contact our sales team directly through the provided channels.
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