(2-Methylphenoxy)acetic acid
Also known as: (2-Methylphenoxy)acetic acid, 2-Methylphenoxyacetic acid, o-Tolyloxyacetic acid, o-Cresoxyacetic acid, 2-(o-Tolyloxy)acetic acid, 2-(2-methylphenoxy)acetic acid, Acetic acid, (2-methylphenoxy)-, 2-(2-methylphenoxy)ethanoic acid, o-Methylphenoxyacetic acid, 2-methylphenyloxyacetic acid, o-Toloxyacetic acid
(2-Methylphenoxy)acetic acid (CAS 1878-49-5) 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 155-157 °C(lit.), a boiling point of 288.4±15.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 115.7±13.9 °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.
- 1878-49-5
- Jingsj CID
- J-30944-4
- 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 | 155-157 °C(lit.) |
|---|---|
| Boiling Point | 288.4±15.0 °C at 760 mmHg |
| Density | 1.2±0.1 g/cm3 |
| Flash Point | 115.7±13.9 °C |
| Exact Mass | 166.062988 |
| PSA | 46.53000 |
| LogP | 1.80 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.537 |
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 (2-Methylphenoxy)acetic acid?
The CAS number of (2-Methylphenoxy)acetic acid is 1878-49-5.
What are the molecular formula and molecular weight of (2-Methylphenoxy)acetic acid?
(2-Methylphenoxy)acetic acid has molecular formula C9H10O3 and molecular weight 166.174 g/mol.
Is (2-Methylphenoxy)acetic acid hazardous?
(2-Methylphenoxy)acetic 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 (2-Methylphenoxy)acetic acid?
For (2-Methylphenoxy)acetic acid, Upstream Products: 2-Methyl-4-chlorophenoxyacetic acid, o-Cresol, Chloroacetic acid; Downstream Products: 2-(2-Methylphenoxy)acetonitrile, 2-Methyl-4-chlorophenoxyacetic acid, (2-Chloro-6-methylphenoxy)acetic 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. "(2-Methylphenoxy)acetic acid (CAS 1878-49-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-30944-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.