(±)-α-Methoxyphenylacetic acid
(±)-α-Methoxyphenylacetic acid (CAS 7021-09-2) is a chiral carboxylic acid with the linear formula C6H5CH(OCH3)COOH and a molecular weight of 166.17 g/mol. This white crystalline compound serves as a valuable building block in organic synthesis. It is particularly useful in the preparation of more complex molecules within the pharmaceutical and chemical research sectors. Its structure lends itself to a variety of synthetic transformations, making it a versatile reagent.
- IUPAC
- O-Methyl-DL-mandelic acid,MOPA
- Synonyms
- O-Methyl-DL-mandelic acidMOPA

Organic Synthesis Intermediate
Utilised as a key intermediate in the synthesis of complex organic molecules, leveraging its chiral centre and functional groups for targeted chemical transformations.
Pharmaceutical Research
Employed in the development of novel pharmaceutical compounds and the exploration of new synthetic routes for active pharmaceutical ingredients (APIs).
Fine Chemical Manufacturing
Serves as a precursor in the manufacturing of specialized fine chemicals, contributing to the production of diverse chemical entities for various industrial applications.
| Molecular weight | 166.17 |
|---|---|
| Linear formula | C6H5CH(OCH3)COOH |
| Form | crystalline |
| Colour | white |
| Boiling point | 165 °C/18 mmHg(lit.) |
| Melting point | 69-71 °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 (±)-α-Methoxyphenylacetic acid used for?
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(±)-α-Methoxyphenylacetic acid is primarily used as a building block and intermediate in organic synthesis, particularly in pharmaceutical research and fine chemical manufacturing.
What is the CAS number and chemical formula for (±)-α-Methoxyphenylacetic acid?
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The CAS number is 7021-09-2 and the linear chemical formula is C6H5CH(OCH3)COOH.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies (±)-α-Methoxyphenylacetic acid at a purity suitable for research and synthesis. Specific grades and assays are available upon request; TSS does not represent this product as USP, BP, or EP grade.
How should (±)-α-Methoxyphenylacetic acid be handled safely?
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Handle with appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, and gloves. Ensure adequate ventilation to avoid inhalation. Refer to the Safety Data Sheet for comprehensive handling guidelines.
Is (±)-α-Methoxyphenylacetic acid a controlled substance?
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The provided data does not indicate that (±)-α-Methoxyphenylacetic acid (CAS 7021-09-2) is a controlled substance.
How is (±)-α-Methoxyphenylacetic acid packed and exported?
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Products are carefully packed to ensure integrity during transit and are exported globally by Tech Serve Solutions, adhering to international shipping regulations for chemical substances.
How can I request a quote or sample for (±)-α-Methoxyphenylacetic acid?
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To request a quote or a sample, please contact our sales team directly through the website or by phone, providing your specific requirements.
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