The chemical Aloin has a designated molecular formula of C21H22O9 and a molecular weight of 418.398 g/mol. Synonyms may include: 10-(1',5'-Anhydroglucosyl)aloe-emodin-9-anthrone, Barbaloin, 1,8-Dihydroxy-3-hydroxymethyl-10-(6-hydroxymethyl-3,4,5-trihydroxy-2-pyranyl)anthrone, EINECS 215-808-0, 10-Glucopyranosyl-1,8-dihydroxy-3-(hydroxymethyl)-9(10H)-anthracenone, Aloinum, NSC 227189, NSC 631263, UNII-648RW354S9 (ChemID).