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

CHICAGO SKY BLUE 6B

Synonyms:					C.I. Direct Blue 1; C.I. 24410; Atlantic resin
						fast blue, Pontamine sky blue

CAS No.:					2610-05-1

Chemical Formula:				C34H24N6Na4O16S4

Formula Weight:				992.82

Appearance:					Dark blue to brown-gold or dark brown powder and/or chunks

Dye content:					~50%

Lambda max.:				618nm in water  

I.R. Spectrum:				Conforms to structure and standard

Solubility:					Opaque, dark blue to very dark blue solution
 (1% in water)

Effective date: 01/27/09