4-Chloro-3-nitrocinnamic acid

4-氯-3-硝基肉桂酸

Also known as: 3-(4-Chloro-3-nitrophenyl)acrylic acid, (2E)-3-(4-Chloro-3-nitrophenyl)acrylic acid, trans-4-Chloro-3-nitrocinnamic acid, 4-Chloro-3-nitrocinnaMic Acid, MFCD00063311

4-Chloro-3-nitrocinnamic acid (CAS 20797-48-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H6ClNO4 and a molecular weight of 227.601 g/mol. It is also known as 3-(4-Chloro-3-nitrophenyl)acrylic acid, (2E)-3-(4-Chloro-3-nitrophenyl)acrylic acid and trans-4-Chloro-3-nitrocinnamic acid. Key properties include a melting point of 188-190 °C(lit.), a boiling point of 408.6±35.0 °C at 760 mmHg, a density of 1.5±0.1 g/cm3 and a flash point of 200.9±25.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
20797-48-2
Jingsj CID
J-1316162-0
Molecular Formula
C9H6ClNO4
Chinese Name
4-氯-3-硝基肉桂酸
Molecular Weight
227.601 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point188-190 °C(lit.)
Boiling Point408.6±35.0 °C at 760 mmHg
Density1.5±0.1 g/cm3
Flash Point200.9±25.9 °C

Frequently Asked Questions

What is the CAS number of 4-Chloro-3-nitrocinnamic acid?

The CAS number of 4-Chloro-3-nitrocinnamic acid is 20797-48-2.

What are the molecular formula and molecular weight of 4-Chloro-3-nitrocinnamic acid?

4-Chloro-3-nitrocinnamic acid has molecular formula C9H6ClNO4 and molecular weight 227.601 g/mol.

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

Last updated:

How to cite: Jingsj. "4-Chloro-3-nitrocinnamic acid (CAS 20797-48-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1316162-0 (accessed 2026-10-22).

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