5-Fluoro-2-methoxybenzoic acid
5-Fluoro-2-methoxybenzoic acid (CAS: 394-04-7) is an organic compound with the molecular formula FC6H3(OCH3)CO2H and a molecular weight of 170.14 g/mol. This fluorinated aromatic carboxylic acid serves as a valuable building block in chemical synthesis. Its structure lends itself to various applications, particularly in the development of novel molecules within chemical biology and peptide chemistry research.

Chemical Synthesis Intermediate
Utilised as a key intermediate in multi-step organic synthesis for the creation of more complex molecules. Its functional groups allow for diverse chemical transformations.
Research and Development
Employed in academic and industrial research settings for exploring new chemical entities and reaction pathways. Useful in the development of potential pharmaceutical leads.
Unnatural Amino Acid Derivative
Incorporated into the synthesis of non-proteinogenic amino acids for peptide research and the creation of modified peptides with unique properties.
Chemical Biology Tool
Applied in chemical biology studies to investigate biological processes or to develop probes for studying molecular interactions.
| Molecular weight | 170.14 |
|---|---|
| Linear formula | FC6H3(OCH3)CO2H |
| Assay | 97% |
| Melting point | 87-91 °C(lit.) |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36/37/39 |
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 5-Fluoro-2-methoxybenzoic acid used for?
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5-Fluoro-2-methoxybenzoic acid is primarily used as an intermediate in chemical synthesis, particularly in areas like chemical biology, peptide chemistry, and the development of unnatural amino acid derivatives for research purposes.
What is the CAS number and chemical formula for 5-Fluoro-2-methoxybenzoic acid?
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The CAS number is 394-04-7, and the linear chemical formula is FC6H3(OCH3)CO2H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 5-Fluoro-2-methoxybenzoic acid with an assay of 97%. This is suitable for research and technical applications. TSS does not represent this product as USP, BP, or EP grade.
How should 5-Fluoro-2-methoxybenzoic acid be handled safely?
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Handle with care. It is classified as a Warning with hazards H315 (causes skin irritation), H319 (causes serious eye irritation), and H335 (may cause respiratory irritation). Wear a dust mask (type N95 US recommended), safety eyeshields, and gloves. Ensure good ventilation.
Is 5-Fluoro-2-methoxybenzoic acid a controlled substance?
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The provided data does not indicate that 5-Fluoro-2-methoxybenzoic acid is a controlled substance.
How is 5-Fluoro-2-methoxybenzoic acid packed, shipped, and exported?
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5-Fluoro-2-methoxybenzoic acid is carefully packaged to ensure product integrity during transit and is exported globally by TSS in compliance with international shipping regulations for chemical compounds.
How can I request a sample or quote for 5-Fluoro-2-methoxybenzoic acid?
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To request a sample or a quote, please contact our sales department through the website or by phone, specifying the product name and CAS number (394-04-7).
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