Molekula
4-Hydroxyphenylacetic acid
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
4-Hydroxyphenylacetic acid is a phenolic carboxylic acid used in pharmaceutical and biochemical research. It serves as an intermediate in the synthesis of active pharmaceutical ingredients and as a metabolite in metabolic studies. Available in powder form with a purity of ≥98%, it has a CAS number of 156-38-7, molecular formula C8H8O3, and molecular weight of 152.15 g/mol. Stored at ambient temperature, it carries a warning signal word due to potential irritant properties. Molekula supplies 4-Hydroxyphenylacetic acid from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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25 g — £28.00 per pack ex VAT · £33.60 inc. VAT
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100 g — £71.30 per pack ex VAT · £85.56 inc. VAT
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White to off-white crystalline powder |
| Melting Point | 149-153 °C |
| Loss on Drying | ≤ 0.5% |
| Assay | ≥ 99.0% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Melting Point | 148 - 150 °C |
| Vapour Pressure | 0.0000555 mmHg |
Source: PubChem CID 127 (Human Metabolome Database (HMDB), Haz-Map)
Identification
| Property | Value |
|---|---|
| SKU | 39793386 |
| CAS Number | 156-38-7 |
| IUPAC Name | 2-(4-hydroxyphenyl)acetic acid |
| EC Number | 205-851-3 |
| Molecular Formula | HOC6H4CH2COOH |
| Molecular Weight | 152.15 |
| Exact Mass | 152.0473 |
| SMILES | C1=CC(=CC=C1CC(=O)O)O |
| InChIKey | XQXPVVBIMDBYFF-UHFFFAOYSA-N |
| InChI | InChI=1S/C8H8O3/c9-7-3-1-6(2-4-7)5-8(10)11/h1-4,9H,5H2,(H,10,11) |
| PubChem CID | 127 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 2918296500 |
| Tariff Code | 2918290090 |
Safety & GHS
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Health Hazard
GHS07
Hazard statements
- H315 Causes skin irritation
- H319 Causes serious eye irritation
- H335 May cause respiratory irritation
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- 2-(4-hydroxyphenyl)acetic acid
- 4-Carboxymethylphenol
- 4-Hydroxybenzeneacetic acid
- Acetic acid, (p-hydroxyphenyl)-
- benzeneacetic acid, 4-hydroxy-
- Hydroxyphenylacetic acid
- p-hydroxyphenylacetate
- p-hydroxyphenylacetic acid
- Parahydroxy phenylacetate
- Parahydroxy phenylacetic acid
Frequently asked questions
What is 4-Hydroxyphenylacetic acid used for?
It is used as an intermediate in the synthesis of pharmaceuticals and fine chemicals, particularly in the production of antioxidants and drug precursors.
What is the chemical formula and molecular weight of 4-Hydroxyphenylacetic acid?
The formula is HOC6H4CH2COOH with a molecular weight of 152.15 g/mol.
How should 4-Hydroxyphenylacetic acid be stored?
It should be stored at ambient temperature, protected from moisture and light.
What grade is available for 4-Hydroxyphenylacetic acid?
It is available in technical grade; custom purity levels may be requested.
Can Molekula supply 4-Hydroxyphenylacetic acid in bulk?
Yes, Molekula can supply this compound in bulk quantities—please contact sales for pricing and availability.
What documentation comes with an order of 4-Hydroxyphenylacetic acid?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS); additional documentation can be provided upon request.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.