2-Methoxyphenoxyacetic acid
Also known as: (2-Methoxyphenoxy)acetic acid, Guaiacoxyacetic acid, (o-Methoxyphenoxy)acetic acid, 2-(2-Methoxyphenoxy)acetic acid, Acetic acid, (2-methoxyphenoxy)-, Acetic acid, (o-methoxyphenoxy)-
2-Methoxyphenoxyacetic acid (CAS 1878-85-9) 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 182.173 g/mol. Key properties include a melting point of 123-126 °C(lit.), a boiling point of 303.0±17.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 120.9±14.4 °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 Aug 21, 2026.
- CAS No.
- 1878-85-9
- Jingsj CID
- J-990906-2
- Molecular Formula
- C9H10O4
- Molecular Weight
- 182.173 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 123-126 °C(lit.) |
|---|---|
| Boiling Point | 303.0±17.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 120.9±14.4 °C |
| Exact Mass | 182.057907 |
| PSA | 55.76000 |
| LogP | 1.16 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.529 |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H315 — Causes skin irritation
- H319 — Causes serious eye 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 2-Methoxyphenoxyacetic acid?
The CAS number of 2-Methoxyphenoxyacetic acid is 1878-85-9.
What are the molecular formula and molecular weight of 2-Methoxyphenoxyacetic acid?
2-Methoxyphenoxyacetic acid has molecular formula C9H10O4 and molecular weight 182.173 g/mol.
Is 2-Methoxyphenoxyacetic acid hazardous?
2-Methoxyphenoxyacetic 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 2-Methoxyphenoxyacetic acid?
For 2-Methoxyphenoxyacetic acid, Upstream Products: Ethyl 2-(2-methoxyphenoxy)acetate, Guaiacol, Chloroacetic acid; Downstream Products: Guaiacol, Carbon dioxide, 7-Methoxy-3(2H)-benzofuranone.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2-Methoxyphenoxyacetic acid (CAS 1878-85-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-990906-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.