2,3-Dichlorocinnamic acid

2,3-二氯肉桂酸

Also known as: (2E)-3-(2,3-Dichlorophenyl)acrylic acid, (E)-3-(2,3-Dichlorophenyl)acrylic acid, (E)-3-(2,3-Dichlorophenyl)-2-propenoic acid, (E)-3-(2,3-Dichlorophenyl)prop-2-enoic acid, 2,3-dichloro-trans-cinnamic acid, trans-2,3-Dichlorocinnamic acid, 2,3-Dichlor-trans-zimtsaeure, 3-(2,3-dichlorophenyl)acrylic acid, 2-Propenoic acid, 3-(2,3-dichlorophenyl)-, (2E)-, RARECHEM BK HC T314, TIMTEC-BB SBB003379, MFCD01076352

2,3-Dichlorocinnamic acid (CAS 20595-44-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H6Cl2O2 and a molecular weight of 217.049 g/mol. It is also known as (2E)-3-(2,3-Dichlorophenyl)acrylic acid, (E)-3-(2,3-Dichlorophenyl)acrylic acid and (E)-3-(2,3-Dichlorophenyl)-2-propenoic acid. Key properties include a melting point of 229-234ºC, a boiling point of 363.0±32.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 173.3±25.1 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
20595-44-2
Jingsj CID
J-3439-9
Molecular Formula
C9H6Cl2O2
Chinese Name
2,3-二氯肉桂酸
Molecular Weight
217.049 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point229-234ºC
Boiling Point363.0±32.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point173.3±25.1 °C

Frequently Asked Questions

What is the CAS number of 2,3-Dichlorocinnamic acid?

The CAS number of 2,3-Dichlorocinnamic acid is 20595-44-2.

What are the molecular formula and molecular weight of 2,3-Dichlorocinnamic acid?

2,3-Dichlorocinnamic acid has molecular formula C9H6Cl2O2 and molecular weight 217.049 g/mol.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "2,3-Dichlorocinnamic acid (CAS 20595-44-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-3439-9 (accessed 2026-10-22).

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