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

CHLORAZOL BLACK E

Synonyms:				Direct Black 38; C.I. 30235; Azo Black

C.A.S.:				1937-37-7

Chemical Formula:			C34H25N9Na2O7S2

Formula Weight:			781.73

Appearance:				Brown to black powder

Identification:			Conforms to structure and standard

Lambda Max:			597-602 nm
(in Ethanol)

Moisture:				<8%

Insolubility in water:		<0.8%

Effective: 02/19/10