S P E C I F I C A T I O N S

QUERCETIN DIHYDRATE

Synonyms:					2-(3,4-Dihydroxyphenyl)-3,5,7-trihydroxy-
						4H-1-benzopyran-4-one dihydrate;
						3,3’,4’,5,7-Pentahydroxyflavone dihydrate

CAS No:					6151-25-3

Molecular Formula:			C15H10O7*2H2O

Formula Weight:				338.27

Description:					Yellow to yellow with a green to 
						brown cast powder	

Assay  (HPLC):				> 98 %

Loss on drying:				9.5% - 12.5%

Melting Point:				> 300 Deg. C

Residue on ignition			<0.2%

Solubility:					Dark red solution at 200 mg plus
						4 ml of 1M Sodium Hydroxide

Effective: 12/23/08