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


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


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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