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

CARMINIC ACID

Synonyms:				Natural Red 4; Carmine; C.I. 75470; 7-a-D-
					Glucopyranosyl-9,10-dihydro-3,5,6,8-tetrahydroxyl-
					1-methyl-9,10-dioxo-2-anthracene carboxylic acid

CAS No.:				1260-17-9

Molecular Formula:		C22H20O13  

Formula Weight:			492.40

Appearance:				Dark red powder

Lambda max.:			495nm in methanol

Dye content:				50% minimum

Solubility:				Clear, dark red solution
 (10 mg/ml 0.1N Acetic Acid)

Loss on drying:			10% maximum

Lead:					10 ppm maximum

Effective Date: 01/27/09