3,5-Dimethylbenzoic acid
3,5-Dimethylbenzoic acid (CAS 499-06-9) is a white crystalline solid with the molecular formula C9H10O2 and a molecular weight of 150.17 g/mol. This aromatic carboxylic acid serves as a valuable building block in organic synthesis. Its structure, featuring two methyl groups meta to a carboxyl group, lends itself to diverse chemical transformations for research and industrial applications.
- IUPAC
- Mesitylenic acid,sym.-m-Xylylic acid
- Synonyms
- Mesitylenic acidsym.-m-Xylylic acid

Organic Synthesis Intermediate
3,5-Dimethylbenzoic acid is employed as a key intermediate in the synthesis of more complex organic molecules. Its functional groups allow for various reactions, including esterification and amidation, facilitating the creation of novel compounds.
Pharmaceutical Research
This compound can be utilised in the development of new pharmaceutical agents. Its specific structural features may contribute to the biological activity of target molecules in medicinal chemistry research.
Material Science
The unique structure of 3,5-Dimethylbenzoic acid makes it a potential candidate for incorporation into novel polymers or advanced materials, influencing their physical and chemical properties.
| Molecular weight | 150.17 |
|---|---|
| Linear formula | (CH3)2C6H3CO2H |
| Assay | 99% |
| Grade | purum |
| Melting point | 169-171 °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-Dimethylbenzoic acid primarily used for?
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3,5-Dimethylbenzoic acid is primarily used as a building block and intermediate in organic synthesis, including applications in pharmaceutical research and material science.
What are the CAS number and molecular formula for 3,5-Dimethylbenzoic acid?
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The CAS number is 499-06-9 and the molecular formula is (CH3)2C6H3CO2H.
What grade and purity does Tech Serve Solutions supply for 3,5-Dimethylbenzoic acid?
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Tech Serve Solutions supplies 3,5-Dimethylbenzoic acid with a minimum assay of 99% in purum grade. This product is intended for research and laboratory use; TSS does not represent it as USP, BP, EP, or pharmacopoeia grade.
How should 3,5-Dimethylbenzoic acid be handled safely?
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Handle 3,5-Dimethylbenzoic acid with appropriate personal protective equipment, including a dust mask (type N95 US), eyeshields, and gloves. Avoid breathing dust and ensure adequate ventilation. It is classified as causing skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335).
Is 3,5-Dimethylbenzoic acid available for export?
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Yes, Tech Serve Solutions is a global supplier and exporter of fine chemicals, including 3,5-Dimethylbenzoic acid, adhering to international shipping regulations.
How can I request a sample or quote for 3,5-Dimethylbenzoic acid?
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To request a sample or obtain a quotation, please contact our sales team through the website or by phone, specifying the product name and CAS number.
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