3-Chlorocinnamic acid
Also known as: m-Chlorocinnamic acid, 3-(3-Chlorophenyl)acrylic acid, (E)-3-(3-chlorophenyl)prop-2-enoic acid, trans-3-Chlorocinnamic acid, 3-(3-chlorophenyl)-2-propenoic acid, cinnamic acid, m-chloro-, MFCD00004384, EINECS 217-478-3
3-Chlorocinnamic acid (CAS 1866-38-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H7ClO2 and a molecular weight of 182.604 g/mol. Key properties include a melting point of 161-164 °C(lit.), a boiling point of 326.2±25.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 151.1±23.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 1866-38-2
- Jingsj CID
- J-36197-7
- Molecular Formula
- C9H7ClO2
- Molecular Weight
- 182.604 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 161-164 °C(lit.) |
|---|---|
| Boiling Point | 326.2±25.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 151.1±23.2 °C |
| Exact Mass | 182.013458 |
| PSA | 37.30000 |
| LogP | 3.02 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.628 |
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 3-Chlorocinnamic acid?
The CAS number of 3-Chlorocinnamic acid is 1866-38-2.
What are the molecular formula and molecular weight of 3-Chlorocinnamic acid?
3-Chlorocinnamic acid has molecular formula C9H7ClO2 and molecular weight 182.604 g/mol.
What are the upstream and downstream products of 3-Chlorocinnamic acid?
For 3-Chlorocinnamic acid, Upstream Products: Malonic acid, 3-Chlorobenzaldehyde, 1-Bromo-3-chlorobenzene; Downstream Products: 3-Chlorobenzaldehyde, Glyoxylic acid, 3-Chlorobenzoic 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. "3-Chlorocinnamic acid (CAS 1866-38-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-36197-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.