3-Chloro-2-methoxybenzoic acid
3-Chloro-2-methoxybenzoic acid (CAS: 3260-93-3) is a functionalized aromatic carboxylic acid with the molecular formula ClC6H3(OCH3)CO2H and a molecular weight of 186.59 g/mol. It is primarily utilised as a building block in organic synthesis and chemical research. This compound falls under the categories of carboxylic acids, carbonyl compounds, and organic building blocks, serving as a valuable intermediate for more complex molecular structures.
- IUPAC
- 3-Chloro-o-anisic acid
- Synonyms
- 3-Chloro-o-anisic acid

Organic Synthesis Intermediate
3-Chloro-2-methoxybenzoic acid serves as a versatile intermediate in the synthesis of complex organic molecules. Its functional groups allow for various chemical transformations, making it useful in multi-step synthetic pathways.
Research and Development
This compound is employed in academic and industrial research settings for the exploration of new chemical entities and reaction methodologies. Its specific structure makes it a target for medicinal chemistry and material science investigations.
Building Block for Fine Chemicals
As a fine chemical, it acts as a fundamental building block in the production of speciality chemicals. Its utility spans across various sectors requiring tailored organic compounds.
| Molecular weight | 186.59 |
|---|---|
| Linear formula | ClC6H3(OCH3)CO2H |
| Assay | 97% |
| Storage temperature | 2-8°C |
| Melting point | 118-123 °C |

Hazard statements
- H301Toxic if swallowed
Precautionary statements
- P301IF SWALLOWED
| Protective equipment | dust mask type N95 (US), Eyeshields, Faceshields, Gloves |
|---|---|
| Transport (UN / ADR) | UN 2811 6.1 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xn |
| Risk statements (R) | 22 |
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-2-methoxybenzoic acid used for?
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3-Chloro-2-methoxybenzoic acid is primarily used as a building block in organic synthesis and for research and development purposes.
What are the CAS number and chemical formula?
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The CAS number is 3260-93-3, and the chemical formula is ClC6H3(OCH3)CO2H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Chloro-2-methoxybenzoic acid with a minimum assay of 97%. This is suitable for research and general chemical synthesis, and TSS does not represent it as USP, BP, or EP grade.
How should 3-Chloro-2-methoxybenzoic acid be handled safely?
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Given the 'Danger' signal word and H301 hazard statement, this compound is toxic if swallowed. Handle with appropriate personal protective equipment, including a dust mask (N95 recommended), eyeshields, face shields, and gloves. Ensure adequate ventilation.
How is this chemical typically packed and exported?
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Tech Serve Solutions securely packs and exports chemicals like 3-Chloro-2-methoxybenzoic acid in compliance with international shipping regulations for hazardous materials. Packaging is designed to maintain product integrity and safety during transit.
How can I request a quote or sample?
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To request a quote or a sample of 3-Chloro-2-methoxybenzoic acid, please contact our sales department through the website or by phone, providing your specific requirements.
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