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

CHROMOTROPE 2B
(C. I. 16575)

CAS No:				548-80-1

Formula:				C16H9N3O10S2Na2

F.W.:					513.37

Appearance:			Dark green to greenish-brown to
					red-brown to brown powder

Loss on drying:			5% maximum.

Absorptivity 1%/1cm,  	575 minimum.
at λ max. 516.2 nm 

Solubility 0.1% water:		Clear Red solution.

Effective: 01/01/16