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

PYRONIN B CERTIFIED

Synonyms:					C.I. 45010

CAS No:					2150-48-3

Chemical Formula:				C42H54CI8Fe2N4O2

Formula Weight:				1042.28

Appearance:					Dark Green crystalline powder

Identification (IR):				Conforms to structure and standard

Dye content:					40% minimum				

Lambda Max:				553nm in Ethanol

Melting Point:				174 - 176 Deg. C

Loss on Drying:				5% Maximum

Solubility:					Red to Dark Red Solution
 
Soluble in water, ethylene glycol, methyl acetate and ethyl acetate; slightly soluble in 
the lower alcohols and methyl Cellosolve. 

Effective: 12/29/17