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4-Cyanocinnamic acid

4-氰基肉桂酸

Also known as: 3-(4-Cyanophenyl)acrylic acid, (2E)-3-(4-cyanophenyl)prop-2-enoic acid, (E)-3-(4-cyanophenyl)acrylic acid, p-cyanocinnamic acid, trans-4-cyanocinnamic acid, trans-p-cyanocinnamic acid, 3-(4-Cyanophenyl)propenoic acid, cyanocinnamicacid, EINECS 242-484-8, MFCD00016845, RARECHEM BK HD C008, AKOS BAR-2475, 2-Propenoic acid, 3-(4-cyanophenyl)-

4-Cyanocinnamic acid (CAS 18664-39-6) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H7NO2 and a molecular weight of 173.168 g/mol. It is also known as 3-(4-Cyanophenyl)acrylic acid, (2E)-3-(4-cyanophenyl)prop-2-enoic acid and (E)-3-(4-cyanophenyl)acrylic acid. Key properties include a melting point of 245-248°C, a boiling point of 380.4±25.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 183.9±23.2 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
18664-39-6
Jingsj CID
J-1117539-7
Molecular Formula
C10H7NO2
Chinese Name
4-氰基肉桂酸
Molecular Weight
173.168 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point245-248°C
Boiling Point380.4±25.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point183.9±23.2 °C

Frequently Asked Questions

What is the CAS number of 4-Cyanocinnamic acid?

The CAS number of 4-Cyanocinnamic acid is 18664-39-6.

What are the molecular formula and molecular weight of 4-Cyanocinnamic acid?

4-Cyanocinnamic acid has molecular formula C10H7NO2 and molecular weight 173.168 g/mol.

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

Last updated:

How to cite: Jingsj. "4-Cyanocinnamic acid (CAS 18664-39-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1117539-7 (accessed 2026-10-22).

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