English name : 3; 4-Dihydroxycinnamic acid
Chinese Alias: 3; 4- hydroxy cinnamic acid; 3; 4- hydroxy cinnamic acid
Molecular formula : C9H8O4
Molecular Weight: 180.1598
Appearance: yellow crystalline powder
Content : ≥98%
Melting point : 222-224 ℃
Water content : 0.5%
General chemical properties of caffeic acid having phenolic acids .
The main purpose:
( 1 ) caffeic acid has a hemostatic effect on visceral bleeding better, less toxic .
(2 ) for whitening, skin care products, with strong ultraviolet absorbent, absorption wavelength of 243 and 326nm;
( 3 ) caffeic acid also can inhibit protein kinases and tyrosine kinase activity of caffeic acid inhibit lipid peroxidation role.
( 4 ) caffeic acid have a broad antibacterial and antiviral activity in vitro effect is stronger, adenovirus and parainfluenza are inhibited ;
( 5 ) low concentrations inhibit collagenase ( clostridiopeptidase mildew ) activity, there are anti-caries tooth effect.