α-Phenylcinnamic acid

α-苯基肉桂酸

Also known as: (2E)-2,3-diphenylprop-2-enoic acid, 2,3-Diphenylacrylic acid, alpha-Phenylcinnamic acid, trans-2,3-Diphenylacrylic acid, Benzeneacetic acid, α-(phenylmethylene)-, (αE)-

α-Phenylcinnamic acid (CAS 91-48-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C15H12O2 and a molecular weight of 224.25500 g/mol. It is also known as (2E)-2,3-diphenylprop-2-enoic acid, 2,3-Diphenylacrylic acid and alpha-Phenylcinnamic acid. Key properties include a melting point of 172-174 °C(lit.), a boiling point of 336.6ºC at 760 mmHg, a density of 1.198 g/cm3 and a flash point of 239.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
91-48-5
Jingsj CID
J-49470-4
Molecular Formula
C15H12O2
Chinese Name
α-苯基肉桂酸
Molecular Weight
224.25500 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point172-174 °C(lit.)
Boiling Point336.6ºC at 760 mmHg
Density1.198 g/cm3
Flash Point239.8ºC

Frequently Asked Questions

What is the CAS number of α-Phenylcinnamic acid?

The CAS number of α-Phenylcinnamic acid is 91-48-5.

What are the molecular formula and molecular weight of α-Phenylcinnamic acid?

α-Phenylcinnamic acid has molecular formula C15H12O2 and molecular weight 224.25500 g/mol.

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

Last updated:

How to cite: Jingsj. "α-Phenylcinnamic acid (CAS 91-48-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-49470-4 (accessed 2026-10-22).

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