Product Name: Emodin Synonym(s): 1,3,8-Trihydroxy-6-methylanthraquinone. 1,3,8-Trihydroxy-6-methyl-9,10-anthracenedione. Rheum-emodin. Frangula emodin. Archin. Frangulinic acid. Emodol. Specification:98%(By HPLC) CAS Registry Number: 518-82-1 Molecular Formula: C15H10O5 Molecular Weight: 270.241 Percentage Composition: C 66.67%; H 3.73%; O 29.60% Biological Source: Isol. from Polygonum cuspidatum Biological Use/Importance: Antimicrobial, antineoplastic agent. Cathartic agent. Shows monoamine oxidase inhibitory activity