p-Coumaric acid
Also known as: (E)-3-(4-hydroxyphenyl)acrylic acid, (E)-3-(4-hydroxyphenyl)prop-2-enoic acid, trans-4-Hydroxycinnamic acid, trans-p-Coumaric acid, trans-p-Hydroxycinnamic acid, trans-4-Coumaric acid, 4-Hydroxycinnamic acid, 4-Coumaric acid, Naringeninic acid, (E)-p-Coumaric acid, p-Hydroxycinnamic acid, trans-p-Cumaric acid
p-Coumaric acid (CAS 501-98-4) 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 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 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. It is listed by 1 supplier; request a quote for pricing. Record last updated Aug 21, 2026.
- CAS No.
- 501-98-4
- Jingsj CID
- J-7734-9
- Molecular Formula
- C9H8O3
- Molecular Weight
- 164.158 g/mol
- Category
- Organic Acids
- Last updated
- 8/21/2026
| Supplier | Purity / Pack | Base Price | Unit Price | Origin | |
|---|---|---|---|---|---|
Made to Order | - | - | CN China |
Physicochemical Properties
| Melting Point | 214ºC |
|---|---|
| Boiling Point | 346.1±17.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 177.3±17.4 °C |
| Exact Mass | 164.047348 |
| PSA | 57.53000 |
| LogP | 1.88 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.660 |
| Additional Property | soluble |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Activity & Biological Data
| Additional Information | [1]. Jaganathan SK, et al. Events associated with apoptotic effect of p-Coumaric acid in HCT-15 colon cancer cells. World J Gastroenterol. 2013 Nov 21;19(43):7726-34. |
|---|
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 p-Coumaric acid?
The CAS number of p-Coumaric acid is 501-98-4.
What are the molecular formula and molecular weight of p-Coumaric acid?
p-Coumaric acid has molecular formula C9H8O3 and molecular weight 164.158 g/mol.
Which suppliers offer p-Coumaric acid?
1 supplier(s) listed; request a quote for pricing.
Is p-Coumaric acid hazardous?
p-Coumaric 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 p-Coumaric acid?
For p-Coumaric acid, Upstream Products: 4-Hydroxycinnamic acid, Methyl p-coumarate; Downstream Products: 4-Ethylphenol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "p-Coumaric acid (CAS 501-98-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-7734-9 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.