4-Methylphenylacetic acid
Also known as: p-Tolylacetic acid, p-Methylphenylacetic acid, 4-Methylbenzeneacetic acid, 2-(4-methylphenyl)acetic acid, (p-Tolyl)acetic acid, 4-Tolylacetic acid, 4-(Carboxymethyl)toluene
4-Methylphenylacetic acid (CAS 622-47-9) is a compound in the Solvents category listed in the Jingsj chemical database. It has the molecular formula C9H10O2 and a molecular weight of 150.174 g/mol. Key properties include a melting point of 88-92 °C(lit.), a boiling point of 266.0±0.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 173.5±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.
- 622-47-9
- Jingsj CID
- J-19753-5
- Molecular Formula
- C9H10O2
- Molecular Weight
- 150.174 g/mol
- Category
- Solvents
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 88-92 °C(lit.) |
|---|---|
| Boiling Point | 266.0±0.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 173.5±13.9 °C |
| Exact Mass | 150.068085 |
| PSA | 37.30000 |
| LogP | 1.97 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.546 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2916399090 |
|---|---|
| Summary | 2916399090 other aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0% |
Frequently Asked Questions
What is the CAS number of 4-Methylphenylacetic acid?
The CAS number of 4-Methylphenylacetic acid is 622-47-9.
What are the molecular formula and molecular weight of 4-Methylphenylacetic acid?
4-Methylphenylacetic acid has molecular formula C9H10O2 and molecular weight 150.174 g/mol.
Is 4-Methylphenylacetic acid hazardous?
4-Methylphenylacetic acid has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Methylphenylacetic acid (CAS 622-47-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-19753-5 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.