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3,4-Dihydroxycinnamic acid, predominantly trans, 99% - CAS 331-39-5 - Formula C9H8O4

A15950 331-39-5 3,4-Dihydroxycinnamic acid, predominantly trans, 99% Caffeic acid Alfa Aesar


Certificate of Analysis

3,4-Dihydroxycinnamic acid, predominantly trans, 99%

CAS: 331-39-5 MDL: MFCD00004392  EINECS: 206-361-2
Not regulated for shipping
Alternate Name: Caffeic acid


Pricing and Availability

Size ($) Price Your Price Quantity Options Availability
10g 56.30 Check Availability Add to Favorites Enter qty and click checkbox
50g 199.00 Check Availability Add to Favorites Enter qty and click checkbox

Chemical Properties

Formula: C9H8O4  Melting point: ca 202° dec.
Formula weight: 180.16  


Inhibitor of ornithine decarboxylase and protein tyrosine kinase

Other References

Merck: 14,1635
Beilstein: 2210883
Harmonized Tariff Code: 2918.29

GHS Hazard and Precautionary Statements

Hazard Statements : H351-H315-H319-H335

Suspected of causing cancer. Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.

Precautionary Statements : P261-P280-P281-P305+P351+P338-P405-P501A

Avoid breathing dust/fume/gas/mist/vapours/spray. Wear protective gloves/protective clothing/eye protection/face protection. Use personal protective equipment as required. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Store locked up. Dispose of contents/container in accordance with local/regional/national/international regulations.

Harmful or IrritantHealth Hazard

Risk & Safety

Risk Phrases: 36/37/38-40
Irritating to eyes, respiratory system and skin. Possible risk of irreversible effects.
Safety Phrases: 26-36/37-60
In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. Wear suitable protective clothing and gloves. This material and/or its container must be disposed of as hazardous waste.
RTECS: GD8950000