(E)-3-(4-Cyanophenyl)acrylic acid

(E)-3-(4-氰基苯基)丙烯酸

Also known as: 4-cyanocinnamic acid, trans-4-cyanocinnamic acid, p-cyanocinnamic acid, (E)-4-cyanocinnamic acid, 3-(4'-cyanophenyl)-2-propenoic acid, trans-p-cyanocinnamic acid, RARECHEM BK HD C008, 2-Propenoic acid, 3-(4-cyanophenyl)-, (2E)-, (2E)-3-(4-Cyanophenyl)prop-2-enoic acid

(E)-3-(4-Cyanophenyl)acrylic acid (CAS 16642-94-7) 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 173.16800 g/mol. It is also known as 4-cyanocinnamic acid, trans-4-cyanocinnamic acid and p-cyanocinnamic acid. Key properties include a melting point of 245-248ºC, a boiling point of 380.4ºC at 760mmHg, a density of 1.26g/cm3 and a flash point of 183.9ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 16642-94-7
Jingsj CID: J-1085203-9
Molecular Formula: C₁₀H₇NO₂
Chinese Name: (E)-3-(4-氰基苯基)丙烯酸
Molecular Weight: 173.16800 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	245-248ºC
Boiling Point	380.4ºC at 760mmHg
Density	1.26g/cm3
Flash Point	183.9ºC

Frequently Asked Questions

What is the CAS number of (E)-3-(4-Cyanophenyl)acrylic acid?

The CAS number of (E)-3-(4-Cyanophenyl)acrylic acid is 16642-94-7.

What are the molecular formula and molecular weight of (E)-3-(4-Cyanophenyl)acrylic acid?

(E)-3-(4-Cyanophenyl)acrylic acid has molecular formula C10H7NO2 and molecular weight 173.16800 g/mol.

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

Last updated: 8/21/2026

How to cite: Jingsj. "(E)-3-(4-Cyanophenyl)acrylic acid (CAS 16642-94-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1085203-9 (accessed 2026-10-22).

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