4-Hydroxyphenylacetic acid, 97%+

About 4-Hydroxyphenylacetic acid, 97%+

4-Hydroxyphenylacetic acid is a carboxylic acid carrying the CAS registry number 156-38-7, specified at 97% purity. Formula C8H8O3, molecular weight 152.15 g/mol. Systematically, it is named 2-(4-hydroxyphenyl)acetic acid. It is also known as p-hydroxyphenylacetic acid or (4-Hydroxyphenyl)acetic acid.

In its supplied form it is a beige powder. Key physical data: a melting point of 148-151 °C. Store sealed in a dry, well-ventilated location away from incompatible materials. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

Key uses span organic synthesis and API synthesis. Our customers for this product work in pharmaceutical manufacturing and academic and industrial research.

Available in 25 g, 100 g, 500 g and 25 kg packs, 4-Hydroxyphenylacetic acid is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

Organic synthesis
API synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	4-Hydroxyphenylacetic acid, 97%+
Catalogue No.	VQ-008351
CAS Number	156-38-7
IUPAC name	2-(4-hydroxyphenyl)acetic acid
Molecular formula	C₈H₈O₃
Molecular weight	152.15 g/mol
Exact mass	152.0473
Purity / assay	97%
HSN code	29182990
InChIKey	XQXPVVBIMDBYFF-UHFFFAOYSA-N
SMILES	C1=CC(=CC=C1CC(=O)O)O
PubChem CID	127

Physical properties
Physical form	Powder
Appearance	Beige powder
Melting point	148-151 °C
LogP (XLogP3)	0.8
H-bond donors / acceptors	2 / 3
TPSA	57.5 Å²
Synonyms	p-hydroxyphenylacetic acid, (4-Hydroxyphenyl)acetic acid, 4-Hydroxybenzeneacetic acid, benzeneacetic acid, 4-hydroxy-, (p-Hydroxyphenyl)acetic acid, 4-Carboxymethylphenol, Parahydroxy phenylacetic acid, Acetic acid, (p-hydroxyphenyl)-, para-hydroxyphenylacetic acid, Hydroxyphenylacetic acid, 4-Hydroxyphenyl acetic acid, p-hydroxyphenylacetate

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Precautionary statements: P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of 4-Hydroxyphenylacetic acid, 97%+?

The CAS Registry Number of 4-Hydroxyphenylacetic acid, 97%+ is 156-38-7. It is also known as p-hydroxyphenylacetic acid, (4-Hydroxyphenyl)acetic acid, 4-Hydroxybenzeneacetic acid.

What is the molecular formula and molecular weight of 4-Hydroxyphenylacetic acid, 97%+?

4-Hydroxyphenylacetic acid, 97%+ has the molecular formula C8H8O3 and a molecular weight of 152.15 g/mol. Its IUPAC name is 2-(4-hydroxyphenyl)acetic acid.

Which grade and pack sizes of 4-Hydroxyphenylacetic acid, 97%+ can I order?

We supply 4-Hydroxyphenylacetic acid, 97%+ in (97%) grade, in 25 g, 100 g, 500 g, 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with 4-Hydroxyphenylacetic acid, 97%+?

Yes. Every lot of 4-Hydroxyphenylacetic acid, 97%+ is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can 4-Hydroxyphenylacetic acid, 97%+ be shipped internationally?

Yes. 4-Hydroxyphenylacetic acid, 97%+ is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.