m-Tolylacetic acid
m-Tolylacetic acid (CAS 621-36-3), with the molecular formula C9H10O2 and a molar mass of 150.17 g/mol, is a white to off-white crystalline solid. This carboxylic acid derivative serves as a valuable building block in organic synthesis. It is commonly utilised in the preparation of more complex molecules and finds applications in chemical research and development, particularly within the pharmaceutical and materials science sectors.
- IUPAC
- 3-Methylphenylacetic acid
- Synonyms
- 3-Methylphenylacetic acid

Organic Synthesis Intermediate
m-Tolylacetic acid functions as a key intermediate in the synthesis of various organic compounds. Its carboxylic acid and aromatic functionalities allow for diverse chemical transformations.
Pharmaceutical Research
This compound is employed in research settings for the development of novel pharmaceutical agents. It can be incorporated into molecular structures aimed at therapeutic targets.
Materials Science
The molecule may be used in the development of new materials due to its specific chemical structure and reactivity.
Chemical Research and Development
As a versatile organic building block, m-Tolylacetic acid supports a broad range of R&D projects in academic and industrial laboratories.
| Molecular weight | 150.17 |
|---|---|
| Linear formula | CH3C6H4CH2CO2H |
| Assay | 99% |
| Melting point | 64-66 °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) | 26-37/39 |
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 m-Tolylacetic acid used for?
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m-Tolylacetic acid is primarily used as a building block and intermediate in organic synthesis, including applications in pharmaceutical research and chemical development.
What are the CAS number and chemical formula for m-Tolylacetic acid?
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The CAS number is 621-36-3 and the chemical formula is C9H10O2.
What grade and purity does Tech Serve Solutions supply for m-Tolylacetic acid?
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Tech Serve Solutions supplies m-Tolylacetic acid with an assay of 99%. This is a research or technical grade material; TSS does not represent it as USP, BP, or EP grade.
How should m-Tolylacetic acid be handled safely?
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m-Tolylacetic acid is classified as an irritant. Handle with appropriate personal protective equipment, including a dust mask (type N95 US recommended), eyeshields, and gloves. Ensure good ventilation and avoid dust formation. Refer to the safety data sheet for comprehensive handling instructions.
Is m-Tolylacetic acid exported by Tech Serve Solutions?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including m-Tolylacetic acid.
How can I request a quote or sample for m-Tolylacetic acid?
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Please contact the TSS sales team via our website or listed contact details to request a quote or a sample of m-Tolylacetic acid.
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