3-Chloro-4-fluorobenzoic acid
3-Chloro-4-fluorobenzoic acid (CAS: 403-16-7) is an aromatic carboxylic acid with the molecular formula ClC6H3(F)CO2H and a molecular weight of 174.56 g/mol. This white to off-white crystalline solid serves as a valuable intermediate in organic synthesis. It is frequently employed in the development of pharmaceuticals, agrochemicals, and other speciality organic compounds. Its unique halogen substitution pattern makes it a useful building block for introducing specific functionalities into target molecules.

Pharmaceutical Intermediate
3-Chloro-4-fluorobenzoic acid is utilised in the synthesis of various active pharmaceutical ingredients (APIs) and drug candidates. Its structure allows for further chemical modifications essential for creating complex therapeutic agents.
Agrochemical Synthesis
This compound finds application as a building block in the production of pesticides, herbicides, and fungicides. The presence of chlorine and fluorine atoms can impart desirable properties to the final agrochemical products.
Material Science Research
It serves as a precursor for developing novel organic materials with specific electronic or optical properties. Researchers may incorporate this molecule into polymers or functional dyes.
Fine Chemical Synthesis
As a versatile organic building block, it is employed in the synthesis of a wide range of fine chemicals for diverse industrial applications. Its reactive carboxylic acid group and halogenated aromatic ring offer multiple synthetic pathways.
| Molecular weight | 174.56 |
|---|---|
| Linear formula | ClC6H3(F)CO2H |
| Assay | 95% |
| Melting point | 133-135 °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-Chloro-4-fluorobenzoic acid used for?
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3-Chloro-4-fluorobenzoic acid is primarily used as an intermediate in the synthesis of pharmaceuticals, agrochemicals, and other speciality organic compounds. It also finds applications in material science research and general fine chemical synthesis.
What is the CAS number and molecular formula for 3-Chloro-4-fluorobenzoic acid?
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The CAS number for 3-Chloro-4-fluorobenzoic acid is 403-16-7, and its molecular formula is ClC6H3(F)CO2H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Chloro-4-fluorobenzoic acid with an assay of 95%. This product is typically supplied for research and chemical synthesis purposes and is not represented as USP, BP, or EP grade.
What safety precautions should be taken when handling 3-Chloro-4-fluorobenzoic acid?
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When handling 3-Chloro-4-fluorobenzoic acid, it is essential to wear appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter should be used if necessary. Ensure adequate ventilation.
How is 3-Chloro-4-fluorobenzoic acid shipped or exported?
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Tech Serve Solutions is an experienced global supplier and exporter of fine chemicals, including 3-Chloro-4-fluorobenzoic acid, adhering to all relevant international shipping and export regulations.
How can I request a sample or quote for 3-Chloro-4-fluorobenzoic acid?
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To request a sample or a quote for 3-Chloro-4-fluorobenzoic acid, please contact our sales team through the website or by phone. We will be pleased to assist with your inquiry.
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