4-Fluoro-2-methylbenzoic acid
4-Fluoro-2-methylbenzoic acid (CAS: 321-21-1), with the molecular formula C <0xE2><0x82><0x87>H <0xE2><0x82><0x87>O <0xE2><0x82><0x82> <0xE2><0x82><0x82>, is a fluorinated aromatic carboxylic acid. This compound serves as a valuable building block in organic synthesis, particularly in the development of new pharmaceuticals and agrochemicals. Its structure allows for diverse chemical transformations, making it a key intermediate for researchers and chemical manufacturers seeking to create complex molecules.

Pharmaceutical Intermediate
Utilised in the synthesis of active pharmaceutical ingredients (APIs), contributing to the development of novel therapeutic agents.
Agrochemical Synthesis
Serves as a precursor in the creation of new crop protection agents and other agricultural chemicals.
Organic Building Block
A versatile component for constructing more complex organic molecules in research and development settings.
Material Science
May find application in the synthesis of specialised polymers or functional materials due to its specific chemical structure.
| Molecular weight | 154.14 |
|---|---|
| Linear formula | FC6H3(CH3)CO2H |
| Assay | 95% |
| Melting point | 168-172 °C(lit.) |


Hazard statements
- H302Harmful if swallowed
- H318Causes serious eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22-41 |
| Safety statements (S) | 26 |
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 4-Fluoro-2-methylbenzoic acid used for?
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4-Fluoro-2-methylbenzoic acid is primarily used as a building block in organic synthesis, particularly for the development of pharmaceuticals and agrochemicals.
What is the CAS number and chemical formula for 4-Fluoro-2-methylbenzoic acid?
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The CAS number is 321-21-1 and the chemical formula is FC6H3(CH3)CO2H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Fluoro-2-methylbenzoic acid with an assay of 95%. We do not represent this product as USP, BP, or EP grade.
What are the primary safety concerns when handling 4-Fluoro-2-methylbenzoic acid?
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This compound is classified with Danger as a signal word, with hazards including H302 (Harmful if swallowed) and H318 (Causes serious eye damage). Appropriate personal protective equipment, including eyeshields, gloves, and a dust mask (type N95 or equivalent), is essential. Always consult the Safety Data Sheet (SDS) before handling.
How is 4-Fluoro-2-methylbenzoic acid shipped?
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Tech Serve Solutions exports fine chemicals globally. Specific packaging and shipping details will be provided upon inquiry.
How can I request a sample or quote for 4-Fluoro-2-methylbenzoic acid?
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Please contact our sales department through the website or by phone to request a sample or a formal quotation.
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