(R)-(-)-alpha-Methoxyphenylacetic acid
Also known as: O-Methyl-D-mandelic acid, (R)-2-Methoxy-2-phenylacetic acid, (R)-(-)-alpha-Methoxyphenylacetic Acid, (R)-alpha-Methoxyphenylacetic acid, (R)-(-)-Methoxyphenylacetic acid, (2R)-Methoxy(phenyl)acetic acid, (2R)-methoxy(phenyl)ethanoic acid, Benzeneacetic acid, alpha-methoxy-, (R)-
(R)-(-)-alpha-Methoxyphenylacetic acid (CAS 3966-32-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H10O3 and a molecular weight of 166.174 g/mol. Key properties include a melting point of 64-67ºC, a boiling point of 283.8±0.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 116.1±15.3 °C. 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.
- 3966-32-3
- Jingsj CID
- J-1477115-4
- Molecular Formula
- C9H10O3
- Molecular Weight
- 166.174 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 64-67ºC |
|---|---|
| Boiling Point | 283.8±0.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 116.1±15.3 °C |
| Exact Mass | 166.062988 |
| PSA | 46.53000 |
| LogP | 1.29 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.535 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
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 (R)-(-)-alpha-Methoxyphenylacetic acid?
The CAS number of (R)-(-)-alpha-Methoxyphenylacetic acid is 3966-32-3.
What are the molecular formula and molecular weight of (R)-(-)-alpha-Methoxyphenylacetic acid?
(R)-(-)-alpha-Methoxyphenylacetic acid has molecular formula C9H10O3 and molecular weight 166.174 g/mol.
Is (R)-(-)-alpha-Methoxyphenylacetic acid hazardous?
(R)-(-)-alpha-Methoxyphenylacetic 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 (R)-(-)-alpha-Methoxyphenylacetic acid?
For (R)-(-)-alpha-Methoxyphenylacetic acid, Upstream Products: DL-α-Methoxyphenylacetic acid, (R)-(-)-2-Methoxy-2-phenylethanol, (R)-(-)-Mandelic acid; Downstream Products: (R)-(-)-2-Methoxy-2-phenylethanol, Methyl 2-methoxy-2-phenylacetate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "(R)-(-)-alpha-Methoxyphenylacetic acid (CAS 3966-32-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1477115-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.