4-Hydroxyphenylpyruvic acid
Also known as: 3-(4-Hydroxyphenyl)-2-oxopropanoic acid, p-Hydroxyphenylpyruvic acid, 3-(4-Hydroxyphenyl)pyruvate, 2-Oxo-3-(4-hydroxyphenyl)propionic acid, 4-Hydroxy-α-oxo-benzenepropanoic acid, Testacid, Hydroxyphenylpyruvic acid, 3-(p-Hydroxyphenyl)-2-oxopropanoic acid, 3-(p-Hydroxyphenyl)pyruvic acid, α-Oxo-4-hydroxybenzenepropionic acid, Pyruvic acid, (p-hydroxyphenyl)-
4-Hydroxyphenylpyruvic acid (CAS 156-39-8) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C9H8O4 and a molecular weight of 180.15700 g/mol. Key properties include a melting point of 219-220 °C (dec.)(lit.), a boiling point of 380.8ºC at 760 mmHg, a density of 1.397 g/cm3 and a flash point of 198.3ºC. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 156-39-8
- Jingsj CID
- J-45528-7
- Molecular Formula
- C9H8O4
- Molecular Weight
- 180.15700 g/mol
- Category
- Solvents
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 219-220 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 380.8ºC at 760 mmHg |
| Density | 1.397 g/cm3 |
| Flash Point | 198.3ºC |
| Exact Mass | 180.04200 |
| PSA | 74.60000 |
| LogP | 0.58840 |
| Vapor Pressure | 0mmHg at 25°C |
| Refractive Index | 1.705 |
| Additional Property | slightly soluble |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Activity & Biological Data
| Target | Human Endogenous Metabolite |
|---|---|
| Additional Information | [1]. Brand LM, et al. Effect of glucagon on phenylalanine metabolism and phenylalanine-degrading enzymes in the rat. Biochem J. 1974 Aug;142(2):231-45. |
Customs & Trade Information
| HS Code | 2918990090 |
|---|---|
| Summary | 2918990090. other carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 4-Hydroxyphenylpyruvic acid?
The CAS number of 4-Hydroxyphenylpyruvic acid is 156-39-8.
What are the molecular formula and molecular weight of 4-Hydroxyphenylpyruvic acid?
4-Hydroxyphenylpyruvic acid has molecular formula C9H8O4 and molecular weight 180.15700 g/mol.
Is 4-Hydroxyphenylpyruvic acid hazardous?
4-Hydroxyphenylpyruvic acid has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 4-Hydroxyphenylpyruvic acid?
For 4-Hydroxyphenylpyruvic acid, Upstream Products: (5Z)-5-[(4-hydroxyphenyl)methylidene]imidazolidine-2,4-dione, L-Tyrosine, D-Tyrosine; Downstream Products: Coelenterazine, 4-Hydroxyphenethyl alcohol, 4-Hydroxyphenylacetic acid.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Hydroxyphenylpyruvic acid (CAS 156-39-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45528-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.