4-(Hydroxymethyl)phenylacetic acid
4-(Hydroxymethyl)phenylacetic acid (CAS: 73401-74-8) is a phenylacetic acid derivative with the linear formula HOCH2C6H4CH2CO2H and a molecular weight of 166.17 g/mol. This organic compound serves as a valuable building block in chemical synthesis. Its structure incorporates both a carboxylic acid group and a hydroxymethyl group, enabling diverse reactions for constructing more complex molecules. It is typically used in research and development settings.

Organic Synthesis Intermediate
4-(Hydroxymethyl)phenylacetic acid is employed as a key intermediate in the synthesis of various organic compounds. Its bifunctional nature allows for sequential or selective reactions at either the carboxylic acid or the hydroxymethyl group.
Research and Development
This compound is utilised in academic and industrial research laboratories for exploring novel synthetic pathways and developing new chemical entities. It is a useful scaffold for medicinal chemistry programs.
Material Science
The presence of reactive functional groups may allow for its incorporation into polymers or functional materials, though specific applications are subject to further research and development.
| Molecular weight | 166.17 |
|---|---|
| Linear formula | HOCH2C6H4CH2CO2H |
| Assay | 98% |
| Melting point | 131-134 °C(lit.) |

Hazard statements
- H319Causes serious eye irritation
Precautionary statements
- 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 |
| 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 4-(Hydroxymethyl)phenylacetic acid used for?
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4-(Hydroxymethyl)phenylacetic acid is primarily used as a building block and intermediate in organic synthesis and research and development settings.
What is the CAS number and chemical formula for 4-(Hydroxymethyl)phenylacetic acid?
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The CAS number is 73401-74-8 and the linear chemical formula is HOCH2C6H4CH2CO2H.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 4-(Hydroxymethyl)phenylacetic acid with an assay of 98%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade unless explicitly stated in the specifications.
How should 4-(Hydroxymethyl)phenylacetic acid be handled safely?
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4-(Hydroxymethyl)phenylacetic acid is classified as a Warning substance (GHS07) with hazard statement H319 (Causes serious eye irritation). Appropriate personal protective equipment includes a dust mask type N95 (US), eyeshields, and gloves. Handle in a well-ventilated area and avoid contact with eyes, skin, and clothing.
How is this chemical packed and shipped?
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Tech Serve Solutions packs and exports chemicals globally, adhering to all relevant shipping regulations to ensure safe and compliant delivery.
How can I request a sample or quote for 4-(Hydroxymethyl)phenylacetic acid?
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Please contact our sales team via the website or your designated account manager to request a sample or obtain a quotation for 4-(Hydroxymethyl)phenylacetic acid.
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