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

ERIOCHROME BLUE BLACK B

Synonyms:				C.I. 14640, Mordant Black 3

CAS No.:				3564-14-5

Chemical Formula:			C20H14N2O5S  

Formula Weight:			416.39

Description:				Brown to black powder

Lambda max.:			528nm in water + 1 ml 1N 
Hydrochloric Acid

Dye content:				~40%

Solubility:				Opaque dark purple solution
 (10 mg/ml, H2O)  

Effective Date: 01/16/09