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

QUINALDINE RED

Synonyms:				None known

CAS No.:				117-92-0

Chemical Formula:			C21H23IN2

Formula Weight:			430.33 

Description:				Dark green to black powder 

Identification:			Conforms to structure and standard

Lambda max:			528nm in ethanol 

Dye content:				~95%

Solubility:				Clear dark red to purple solution
 (0.1% in ethanol)

Visual Transition Interval:	From pH 1.4 (colorless)
To     pH 3.2 (red)

Effective Date: 12/23/08