AOAC SPDS Meeting Book March 19 2015

Chemistry and Properties of Aloin:

Aloe Emodin

Aloin B

Aloin A

Chemistry and Properties of Aloin: • Synonyms/Other names: Barbaloin, 1,8-Dihydroxy-10-(β-D- glucopyranosyl)-3-(hydroxymethyl)-9(10H)-anthracenone; 10-β-D- Glucopyranosyl-1,8-dihydroxy-3-(hydroxymethyl)-9(10H)-anthracenone; • CAS Number: 1415-73-2 • C 21 H 22 O 9 • Molecular weight: 418.39 g/mol • Solubility: Soluble in water, alcohol, DMSO, pyridine • Melting Point: 148 °C to 149 °C • Recommended storage: Store at 2-4 °C