3-Methoxyphenylacetic acid
Also known as: 2-(3-Methoxyphenyl)acetic acid, m-Methoxyphenylacetic acid, 3-Methoxybenzeneacetic acid, (3-Methoxyphenyl)acetic acid, m-Anisylacetic acid, 3-MeO-phenylacetic acid, 3-Methoxy phenyl acetic acid
3-Methoxyphenylacetic acid (CAS 1798-09-0) 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 65-69 °C(lit.), a boiling point of 305.5±17.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 124.1±14.4 °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.
- 1798-09-0
- Jingsj CID
- J-5455-7
- 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 | 65-69 °C(lit.) |
|---|---|
| Boiling Point | 305.5±17.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 124.1±14.4 °C |
| Exact Mass | 166.062988 |
| PSA | 46.53000 |
| LogP | 1.42 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.538 |
| Additional Property | SLIGHTLY SOLUBLE |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Activity & Biological Data
| Additional Information | [1]. Mandava NB, et al. Phytotoxins in Rhizoctonia solani: isolation and biological activity of m-hydroxy- and m-methoxyphenylacetic acids. J Agric Food Chem. 1980 Jan-Feb;28(1):71-5. |
|---|
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-Methoxyphenylacetic acid?
The CAS number of 3-Methoxyphenylacetic acid is 1798-09-0.
What are the molecular formula and molecular weight of 3-Methoxyphenylacetic acid?
3-Methoxyphenylacetic acid has molecular formula C9H10O3 and molecular weight 166.174 g/mol.
Is 3-Methoxyphenylacetic acid hazardous?
3-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 3-Methoxyphenylacetic acid?
For 3-Methoxyphenylacetic acid, Upstream Products: 3-Methoxyphenethyl alcohol, 3-Methoxybenzyl bromide, 3-Methoxybenzyl chloride; Downstream Products: 2-(3-Methoxyphenyl)acetohydrazide, ethyl 3-methoxyphenylacetate, N-Methoxy-2-(3-methoxyphenyl)-N-methylacetamide.
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-Methoxyphenylacetic acid (CAS 1798-09-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-5455-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.