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3-(3-Hydroxyphenyl)propionic acid

Also known as: m-Hydroxyphenylpropionic acid, 3-Hydroxyhydrocinnamic acid, 3-(m-Hydroxyphenyl)propionic acid, 3-Hydroxybenzenepropanoic acid, m-Hydrocoumaric acid, Dihydro-m-coumaric acid, IFLAB-BB F2119-0005, LABOTEST-BB LT00454600

3-(3-Hydroxyphenyl)propionic acid (CAS 621-54-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H10O3 and a molecular weight of 166.17400 g/mol. Key properties include a melting point of 111 °C, a boiling point of 354.5ºC at 760 mmHg, a density of 1.26 g/cm3 and a flash point of 182.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
621-54-5
Jingsj CID
J-45879-7
Molecular Formula
C9H10O3
Molecular Weight
166.17400 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point111 °C
Boiling Point354.5ºC at 760 mmHg
Density1.26 g/cm3
Flash Point182.4ºC
Exact Mass166.06300
PSA57.53000
LogP1.40940
Refractive Index1.58

Activity & Biological Data

TargetHuman Endogenous Metabolite
Additional Information[1]. Iveta Najmanová, et al. Flavonoid metabolite 3‐(3‐hydroxyphenyl)propionic acid formed by human microflora decreases arterial blood pressure in rats. Wiley Online Library. Volume60, Issue5. May 2016.

Customs & Trade Information

HS Code2918290000
SummaryHS: 2918290000 other carboxylic acids with phenol function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives Tax rebate rate:9.0% Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward) VAT:17.0% MFN tariff:6.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 3-(3-Hydroxyphenyl)propionic acid?

The CAS number of 3-(3-Hydroxyphenyl)propionic acid is 621-54-5.

What are the molecular formula and molecular weight of 3-(3-Hydroxyphenyl)propionic acid?

3-(3-Hydroxyphenyl)propionic acid has molecular formula C9H10O3 and molecular weight 166.17400 g/mol.

What are the upstream and downstream products of 3-(3-Hydroxyphenyl)propionic acid?

For 3-(3-Hydroxyphenyl)propionic acid, Upstream Products: trans-3-Hydroxycinnamic acid, 4-Iodophenol, 3-(3-Methoxyphenyl)propanoic acid; Downstream Products: 5-Hydroxy-1-indanone, 7-Hydroxy-1-indanone, Methyl 3-(3-cyanophenyl)propanoate.

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

Last updated:

How to cite: Jingsj. "3-(3-Hydroxyphenyl)propionic acid (CAS 621-54-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-45879-7 (accessed 2026-11-09).

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