p-Coumaric acid
CAS 7400-08-0
EC 231-000-0
Formula C9H8O3
MW 164.16 g/mol
Organic Acids Personal Care & CosmeticsFood & NutritionPharmaceuticals & Healthcare UV Protection & StabilizationAntioxidant & StabilizerHumectant & Moisturizing
Description
P-Coumaric acid (CAS 7400-08-0), also referred to as PHCA, 4-coumaric acid, or p-cumaric acid, is a naturally occurring hydroxycinnamic acid found in plants including grains, fruits, and vegetables. It carries no assigned E-code and is classified under HS code 2918 29 00.
In cosmetic formulations, p-coumaric acid functions as a UV absorber by capturing and dissipating UV radiation at the molecular level, reducing photodamage to skin cells. It also acts as an antioxidant by scavenging free radicals, making it applicable in both topical skincare products and food preservation systems where oxidative stability is required.
The material is supplied as a light yellow to beige crystalline powder meeting cosmetic and food-grade specifications. It falls under REACH regulation for EU supply and is handled under standard organic acid compliance frameworks. Packaging formats vary by supplier; bulk quantities are typically available for industrial procurement.
In cosmetic formulations, p-coumaric acid functions as a UV absorber by capturing and dissipating UV radiation at the molecular level, reducing photodamage to skin cells. It also acts as an antioxidant by scavenging free radicals, making it applicable in both topical skincare products and food preservation systems where oxidative stability is required.
The material is supplied as a light yellow to beige crystalline powder meeting cosmetic and food-grade specifications. It falls under REACH regulation for EU supply and is handled under standard organic acid compliance frameworks. Packaging formats vary by supplier; bulk quantities are typically available for industrial procurement.
Physical Properties
| Melting Point | 211.5 °C |
| Boiling Point | 251.61°C (rough estimate) |
| Density | 1.2132 (rough estimate) |
| Appearance | Light yellow to beige crystalline powder |
| Color | White to Off-White |
| Form | Solid |
| Refractive Index | 1.5380 (estimate) |
| Log P | 1.790 |
Safety & Handling (Learn More)
Danger GHS07 GHS05 GHS06
H
H301H311H314H315H317H318H319H335H301+H311
P
P260P261P262P264P270P271P272P280P316P317P319P321P330P363P405P501P264+P265P301+P316P302+P352P304+P340P332+P317P333+P317P337+P317P361+P364P362+P364P403+P233P301+P330+P331P302+P361+P354P305+P351+P338P305+P354+P338
Trade & Regulatory
| HS Code | 2918 29 00 |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 2 |
Other Names
(E)-3-(4-hydroxyphenyl)prop-2-enoic acid4-coumaric acidpara-coumaric acidp-hydroxycinnamic acidPHCAP-CUMARIC ACID
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