3-(4-Hydroxyphenyl)propionic acid
Also known as: Phloretic acid, Desaminotyrosine, 4-Hydroxyhydrocinnamic acid, 3-(4-Hydroxyphenyl)propanoic acid, 3-(p-Hydroxyphenyl)propionic acid, p-Hydroxyhydrocinnamic acid, PHLORETIC ACID, PHLORETINIC ACID, beta-(p-Hydroxyphenyl)propionic acid
3-(4-Hydroxyphenyl)propionic acid (CAS 501-97-3) 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 166.174 g/mol. Key properties include a melting point of 129-131 °C(lit.), a boiling point of 352.4±17.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 181.1±17.4 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 501-97-3
- Jingsj CID
- J-32129-9
- Molecular Formula
- C9H10O3
- Molecular Weight
- 166.174 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 129-131 °C(lit.) |
|---|---|
| Boiling Point | 352.4±17.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 181.1±17.4 °C |
| Exact Mass | 166.062988 |
| PSA | 57.53000 |
| LogP | 1.10 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.580 |
| Additional Property | slightly soluble |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Activity & Biological Data
| Target | Human Endogenous Metabolite |
|---|---|
| Additional Information | [1]. Steed AL, et al. The microbial metabolite desaminotyrosine protects from influenza through type I interferon. Science. 2017 Aug 4;357(6350):498-502. |
Customs & Trade Information
| HS Code | 2918290000 |
|---|---|
| Summary | HS: 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-(4-Hydroxyphenyl)propionic acid?
The CAS number of 3-(4-Hydroxyphenyl)propionic acid is 501-97-3.
What are the molecular formula and molecular weight of 3-(4-Hydroxyphenyl)propionic acid?
3-(4-Hydroxyphenyl)propionic acid has molecular formula C9H10O3 and molecular weight 166.174 g/mol.
Is 3-(4-Hydroxyphenyl)propionic acid hazardous?
3-(4-Hydroxyphenyl)propionic acid has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 3-(4-Hydroxyphenyl)propionic acid?
For 3-(4-Hydroxyphenyl)propionic acid, Upstream Products: 4-Hydroxycinnamic acid, 3-(4-Methoxyphenyl)propanoic acid, 3-[4-(Benzyloxy)phenyl]acrylic acid; Downstream Products: 7-Hydroxy-2-tetralone, Phloretin, Cetraxate.
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-(4-Hydroxyphenyl)propionic acid (CAS 501-97-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32129-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.