3-Chlorocinnamic acid

间氯肉桂酸

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. It is also known as m-Chlorocinnamic acid, 3-(3-Chlorophenyl)acrylic acid and (E)-3-(3-chlorophenyl)prop-2-enoic acid. 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-36197-6
Molecular Formula
C9H7ClO2
Chinese Name
间氯肉桂酸
Molecular Weight
182.604 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point161-164 °C(lit.)
Boiling Point326.2±25.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point151.1±23.2 °C

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.

Data compiled from public chemical databases 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-36197-6 (accessed 2026-10-22).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.