hydroxysafflor yellow A
hydroxysafflor yellow a
A <em>C</em>-glycosyl compound that is 3,4,5-trihydroxycyclohexa-2,5-dien-1-one which is substituted by β-<small>D</small>-glucosyl groups at positions 2 and 4, and by a <em>p</em>-hydroxycinnamoyl group at position 6. It is the main bioactive compound of a traditional Chinese medicine obtained from safflower (<em>Carthamus tinctorius</em>).