4-Bromo-3,5-dimethoxybenzoic acid
4-Bromo-3,5-dimethoxybenzoic acid (CAS 56518-42-4) is a valuable organic building block with the molecular formula BrC6H2(OCH3)2CO2H and a molecular weight of 261.07 g/mol. This compound serves as a key intermediate in various chemical syntheses. Its structure, featuring a brominated aromatic ring with methoxy substituents and a carboxylic acid group, makes it suitable for complex organic molecule construction in research and development settings.
- Synonyms
- BrC6H2(OCH3)2CO2H

Organic Synthesis Intermediate
This benzoic acid derivative is frequently employed as a versatile building block in the synthesis of more complex organic molecules. Its functional groups allow for a variety of chemical transformations, making it useful in multi-step synthetic routes.
Research and Development
Primarily utilized in R&D laboratories, 4-Bromo-3,5-dimethoxybenzoic acid contributes to the exploration of novel compounds and materials. Its specific substitution pattern is of interest for structure-activity relationship studies in medicinal chemistry and materials science.
Fine Chemical Production
As a fine chemical, it is used in the production of specialised chemicals where precise molecular architecture is required. This can include the development of active pharmaceutical ingredients or advanced materials.
| Molecular weight | 261.07 |
|---|---|
| Linear formula | BrC6H2(OCH3)2CO2H |
| Assay | 97% |
| Contains / stabiliser | 150 ppm BHT |
| Melting point | 254-258 °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 4-Bromo-3,5-dimethoxybenzoic acid used for?
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4-Bromo-3,5-dimethoxybenzoic acid is primarily used as a building block and intermediate in organic synthesis and research and development laboratories for the creation of complex molecules.
What is the CAS number and chemical formula for 4-Bromo-3,5-dimethoxybenzoic acid?
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The CAS number is 56518-42-4 and the chemical formula is BrC6H2(OCH3)2CO2H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-Bromo-3,5-dimethoxybenzoic acid with an assay of 97%. We do not represent this product as USP, BP, or EP grade.
What are the safety and handling precautions for this chemical?
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This compound requires appropriate personal protective equipment, including eyeshields and gloves. A type N95 (US) or type P1 (EN143) respirator filter is recommended. It has a WGK Germany rating of 3, indicating a high level of hazard.
Is 4-Bromo-3,5-dimethoxybenzoic acid a controlled substance?
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The provided data does not indicate that 4-Bromo-3,5-dimethoxybenzoic acid is a controlled substance.
How is this chemical packed, shipped, and exported by TSS?
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Tech Serve Solutions offers this chemical for global export, packed appropriately for safe transit and compliance with international shipping regulations.
How can I request a quote or sample for 4-Bromo-3,5-dimethoxybenzoic acid?
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Please contact our sales team via the website or direct inquiry to request a quotation or to arrange for a sample.
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