AOAC SPDS Meeting Book March 19 2015

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Chemistry and Properties of Aloin:

Aloin A

Aloin B

Aloe Emodin

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