3-Hydroxy-4-methoxyphenylacetic acid
Also known as: (3-Hydroxy-4-methoxyphenyl)acetic acid, 2-(3-hydroxy-4-methoxy-phenyl)acetic acid, 2-(3-hydroxy-4-methoxyphenyl)acetic acid, 3-Hydroxy-4-methoxybenzeneacetic acid, 4-Methoxy-3-hydroxyphenylacetic acid, Benzeneacetic acid, 3-hydroxy-4-methoxy-, Homoisovanillic acid, Isohomovanillic acid, MFCD00016829
3-Hydroxy-4-methoxyphenylacetic acid (CAS 1131-94-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H10O4 and a molecular weight of 182.17500 g/mol. Key properties include a melting point of 128 °C, a boiling point of 371.3±27.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 153.1±17.2 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Nov 4, 2026.
- CAS No.
- 1131-94-8
- Jingsj CID
- J-19733-1
- Molecular Formula
- C9H10O4
- Molecular Weight
- 182.17500 g/mol
- Category
- Organic Acids
- Last updated
- 11/4/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 128 °C |
|---|---|
| Boiling Point | 371.3±27.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 153.1±17.2 °C |
| Exact Mass | 182.057907 |
| PSA | 66.76000 |
| LogP | 0.47 |
| Vapor Pressure | 0.0±0.9 mmHg at 25°C |
| Refractive Index | 1.573 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Activity & Biological Data
| Target | Human Endogenous Metabolite |
|---|---|
| Additional Information | [1]. Comoy E, et al. Iso-homovanillic acid determination in human urine. Clin Chim Acta. 1971 Dec;35(2):369-75. |
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 3-Hydroxy-4-methoxyphenylacetic acid?
The CAS number of 3-Hydroxy-4-methoxyphenylacetic acid is 1131-94-8.
What are the molecular formula and molecular weight of 3-Hydroxy-4-methoxyphenylacetic acid?
3-Hydroxy-4-methoxyphenylacetic acid has molecular formula C9H10O4 and molecular weight 182.17500 g/mol.
Is 3-Hydroxy-4-methoxyphenylacetic acid hazardous?
3-Hydroxy-4-methoxyphenylacetic acid has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
What are the upstream and downstream products of 3-Hydroxy-4-methoxyphenylacetic acid?
For 3-Hydroxy-4-methoxyphenylacetic acid, Upstream Products: (3-Bromo-4-methoxyphenyl)acetic acid, 4-Methoxyphenylacetic acid, 2-(3-(Benzyloxy)-4-methoxyphenyl)acetic acid; Downstream Products: 2-(3-(Benzyloxy)-4-methoxyphenyl)acetic acid, Tetrahydroberberine, 2-(4-methoxy-3-phenylmethoxyphenyl)acetyl chloride.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-Hydroxy-4-methoxyphenylacetic acid (CAS 1131-94-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-19733-1 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.