3-Hydroxyphenylacetic acid
3-Hydroxyphenylacetic acid (CAS: 621-37-4; Formula: HOC6H4CH2CO2H) is a valuable organic compound with a molecular weight of 152.15 g/mol. This white to off-white crystalline solid serves as a key building block in chemical synthesis. Its primary applications are in the development of pharmaceutical intermediates and as a reagent in organic chemistry research, contributing to the creation of more complex molecules.

Pharmaceutical Intermediate Synthesis
3-Hydroxyphenylacetic acid is utilised as a starting material or intermediate in the synthesis of various pharmaceutical compounds. Its structure allows for further functionalisation to build complex drug molecules.
Organic Synthesis Reagent
This compound functions as a versatile reagent in organic chemistry laboratories. It is employed in research and development for creating novel organic structures and exploring new synthetic pathways.
Building Block for Specialty Chemicals
The molecule's characteristic phenylacetic acid scaffold with a hydroxyl group makes it useful for constructing specialty chemicals with specific properties and functionalities.
| Molecular weight | 152.15 |
|---|---|
| Linear formula | HOC6H4CH2CO2H |
| Assay | ≥99% |
| Melting point | 129-133 °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-Hydroxyphenylacetic acid used for?
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3-Hydroxyphenylacetic acid is primarily used as a building block in organic synthesis and as an intermediate in the development of pharmaceutical compounds and specialty chemicals.
What is the CAS number and chemical formula for 3-Hydroxyphenylacetic acid?
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The CAS number is 621-37-4, and the chemical formula is HOC6H4CH2CO2H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 3-Hydroxyphenylacetic acid with an assay of ≥99%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade.
How should 3-Hydroxyphenylacetic acid be handled safely?
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3-Hydroxyphenylacetic acid is an irritant. Handle with appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, and gloves. Ensure good ventilation and avoid breathing dust. Wash hands thoroughly after handling.
Is 3-Hydroxyphenylacetic 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 3-Hydroxyphenylacetic acid.
How can I request a quote or sample for 3-Hydroxyphenylacetic acid?
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Please contact our sales team directly via the website or by phone to request a quote or a sample for 3-Hydroxyphenylacetic acid.
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