Cinnamylideneacetic acid

5-苯基-2,4-戊二烯酸

Also known as: (2E,4E)-5-phenylpenta-2,4-dienoic acid, 5-Phenyl-2,4-pentadienoic acid, 5-Phenylpenta-2,4-dienoic acid, β-Styrylacrylic acid, 2,4-Pentadienoic acid, 5-phenyl-, (2E,4E)-, 4-Phenyl-1,3-butadiene-1-carboxylic acid

Cinnamylideneacetic acid (CAS 1552-94-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C11H10O2 and a molecular weight of 174.196 g/mol. It is also known as (2E,4E)-5-phenylpenta-2,4-dienoic acid, 5-Phenyl-2,4-pentadienoic acid and 5-Phenylpenta-2,4-dienoic acid. Key properties include a melting point of 165-166°C, a boiling point of 356.1±21.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 257.6±13.0 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1552-94-9
Jingsj CID
J-47643-4
Molecular Formula
C11H10O2
Chinese Name
5-苯基-2,4-戊二烯酸
Molecular Weight
174.196 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point165-166°C
Boiling Point356.1±21.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point257.6±13.0 °C
Exact Mass174.068085
PSA37.30000
LogP2.21
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.616

Activity & Biological Data

Additional Information[1]. Melchert C, et al. Synthesis and characterization of telechelic oligoethers with terminal cinnamylidene acetic acid moieties. J Appl Biomater Funct Mater. 2012;10(3):185-90.

Customs & Trade Information

HS Code2916399090
Summary2916399090 other aromatic monocarboxylic acids, their anhydrides, halides, peroxides, peroxyacids and their derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Cinnamylideneacetic acid?

The CAS number of Cinnamylideneacetic acid is 1552-94-9.

What are the molecular formula and molecular weight of Cinnamylideneacetic acid?

Cinnamylideneacetic acid has molecular formula C11H10O2 and molecular weight 174.196 g/mol.

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

Last updated:

How to cite: Jingsj. "Cinnamylideneacetic acid (CAS 1552-94-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-47643-4 (accessed 2026-10-28).

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