DL-2-Phenylpropionic acid
Also known as: Hydratropic acid, 2-Phenylpropionic acid, 2-Phenylpropanoic acid, (±)-2-Phenylpropionic acid, DL-Hydratropic acid, Benzeneacetic acid, α-methyl-, α-Methylbenzeneacetic acid, dl-PPA, Loxoprofen Impurity 16, α-Methyl-α-toluic acid, Phenylpropionic acid, Phenylpropanoic acid
DL-2-Phenylpropionic acid (CAS 492-37-5) is a compound in the Organic Acids 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 5 ºC, a boiling point of 260-262 ºC, a density of 1.1±0.1 g/cm3 and a flash point of 148 ºC. 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.
- 492-37-5
- Jingsj CID
- J-828074-8
- Molecular Formula
- C9H10O2
- Molecular Weight
- 150.174 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 5 ºC |
|---|---|
| Boiling Point | 260-262 ºC |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 148 ºC |
| Exact Mass | 150.068085 |
| PSA | 37.30000 |
| LogP | 1.85 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.5215-1.5235 |
| Additional Property | 10 g/L (20 ºC) |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Activity & Biological Data
| Target | Human Endogenous Metabolite |
|---|---|
| Additional Information | [1]. De Costa KS, et al. Metabolism and disposition of alpha-methylstyrene in rats. Drug Metab Dispos. 2001 Feb;29(2):166-71. |
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 DL-2-Phenylpropionic acid?
The CAS number of DL-2-Phenylpropionic acid is 492-37-5.
What are the molecular formula and molecular weight of DL-2-Phenylpropionic acid?
DL-2-Phenylpropionic acid has molecular formula C9H10O2 and molecular weight 150.174 g/mol.
Is DL-2-Phenylpropionic acid hazardous?
DL-2-Phenylpropionic 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 DL-2-Phenylpropionic acid?
For DL-2-Phenylpropionic acid, Upstream Products: iodomethane, Carbon dioxide, (1-Chloroethyl)benzene; Downstream Products: 1-Phenylethanol, Acetophenone, (1-Bromoethyl)benzene.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "DL-2-Phenylpropionic acid (CAS 492-37-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-828074-8 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.