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