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4-Hydroxycinnamic acid

Also known as: p-Hydroxycinnamic acid, 3-(4-Hydroxyphenyl)acrylic acid, 3-(4-Hydroxyphenyl)-2-propenoic acid, beta-(4-Hydroxyphenyl)acrylic acid, p-Hydroxyphenylacrylic acid, Hydroxycinnamic acid

4-Hydroxycinnamic acid (CAS 7400-08-0) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H8O3 and a molecular weight of 164.158 g/mol. Key properties include a melting point of 212-214ºC, a boiling point of 346.1±17.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 177.3±17.4 °C. It is listed by 1 supplier; request a quote for pricing. Record last updated Aug 21, 2026.

CAS No.
7400-08-0
Jingsj CID
J-37929-3
Molecular Formula
C9H8O3
Molecular Weight
164.158 g/mol
Category
Organic Acids
Last updated
8/21/2026
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Physicochemical Properties

Melting Point212-214ºC
Boiling Point346.1±17.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point177.3±17.4 °C
Exact Mass164.047348
PSA57.53000
LogP1.88
Vapor Pressure0.0±0.8 mmHg at 25°C
Refractive Index1.660
Storage Conditions-20°C

Activity & Biological Data

TargetPGE2:126 μM (IC50) TXB2:371 μM (IC50) Human Endogenous Metabolite
Additional Information[1]. Luceri C, et al. p-Coumaric acid, a common dietary phenol, inhibits platelet activity in vitro and in vivo. Br J Nutr. 2007 Mar;97(3):458-63.

Frequently Asked Questions

What is the CAS number of 4-Hydroxycinnamic acid?

The CAS number of 4-Hydroxycinnamic acid is 7400-08-0.

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

4-Hydroxycinnamic acid has molecular formula C9H8O3 and molecular weight 164.158 g/mol.

Which suppliers offer 4-Hydroxycinnamic acid?

1 supplier(s) listed; request a quote for pricing.

What are the upstream and downstream products of 4-Hydroxycinnamic acid?

For 4-Hydroxycinnamic acid, Upstream Products: Malonic acid, 4-Hydroxybenzaldehyde, L-Tyrosine; Downstream Products: Methyl p-coumarate, methyl (E)-4-methoxycinnamate, Pterostilbene.

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

Last updated:

How to cite: Jingsj. "4-Hydroxycinnamic acid (CAS 7400-08-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-37929-3 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.