Atropic acid
Also known as: 2-Phenylacrylic acid, 2-Phenylpropenoic acid, 2-Phenylprop-2-enoic acid, α-Phenylacrylic acid, Benzeneacetic acid, α-methylene-, Ipratropium Bromide EP Impurity D, MFCD00046531
Atropic acid (CAS 492-38-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H8O2 and a molecular weight of 148.159 g/mol. Key properties include a melting point of 107°C, a boiling point of 267.8±9.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 174.5±9.6 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 492-38-6
- Jingsj CID
- J-6121-2
- Molecular Formula
- C9H8O2
- Molecular Weight
- 148.159 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 107°C |
|---|---|
| Boiling Point | 267.8±9.0 °C at 760 mmHg |
| Density | 1.1±0.1 g/cm3 |
| Flash Point | 174.5±9.6 °C |
| Exact Mass | 148.052429 |
| PSA | 37.30000 |
| LogP | 2.44 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.560 |
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 Atropic acid?
The CAS number of Atropic acid is 492-38-6.
What are the molecular formula and molecular weight of Atropic acid?
Atropic acid has molecular formula C9H8O2 and molecular weight 148.159 g/mol.
What are the upstream and downstream products of Atropic acid?
For Atropic acid, Upstream Products: alpha-Bromostyrene, Carbon dioxide, Ethyl 2-phenylacrylate; Downstream Products: Tropic acid, Atrolactic Acid Hydrate, 3-amino-2-phenylpropanoic 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. "Atropic acid (CAS 492-38-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-6121-2 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.