3,5-Dimethoxybenzoic acid
3,5-Dimethoxybenzoic acid (CAS 1132-21-4), with the molecular formula (CH3O)2C6H3CO2H and a molecular weight of 182.17 g/mol, is a key organic building block. This carboxylic acid is utilised in chemical synthesis, particularly within the pharmaceutical and research sectors. Its established structure and reactivity make it a valuable intermediate for creating more complex molecules.
- Synonyms
- (CH3O)2C6H3CO2H

Pharmaceutical Intermediates
Serves as a crucial building block in the synthesis of active pharmaceutical ingredients (APIs) and complex organic molecules for drug discovery and development.
Organic Synthesis
Employed as a versatile reagent in various organic transformations, enabling the construction of diverse chemical structures in research laboratories.
Specialty Chemicals
Utilised in the development and production of niche chemical products where its specific structural features are advantageous.
| Molecular weight | 182.17 |
|---|---|
| Linear formula | (CH3O)2C6H3CO2H |
| Assay | 97% |
| Melting point | 178-180 °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 |
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 3,5-Dimethoxybenzoic acid used for?
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3,5-Dimethoxybenzoic acid is primarily used as a building block in organic synthesis, particularly for creating pharmaceutical intermediates and other complex organic molecules.
What are the CAS number and molecular formula for 3,5-Dimethoxybenzoic acid?
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The CAS number is 1132-21-4 and the molecular formula is (CH3O)2C6H3CO2H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3,5-Dimethoxybenzoic acid with an assay of 97%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should 3,5-Dimethoxybenzoic acid be handled?
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Handle 3,5-Dimethoxybenzoic acid with appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, and gloves. It may cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335).
How is 3,5-Dimethoxybenzoic acid shipped and exported?
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Tech Serve Solutions is an experienced global supplier and exporter of fine chemicals, including 3,5-Dimethoxybenzoic acid, adhering to all international shipping and export regulations.
How can I request a quote or sample of 3,5-Dimethoxybenzoic acid?
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To request a quote or sample, please contact our sales team through the website or by phone, providing your specific requirements.
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