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

CRESOL RED SODIUM SALT

Synonyms:					None known

CAS No:					62625-29-0

Chemical Formula:				C21H17NaO5S
  
Formula Weight:				404.41

Description:					Orange to orange-brown to very dark 
						Brown crystalline powder and/or crystals

Solubility (1 mg/ml, H2O):			Clear, dark red solution

Dye content					~95%

Lambda Max:				425nm in ethanol

Solubility:					Clear dark red solution
(1 mg/ml, H2O)

Visual Transition Interval:		From pH 0.2 (orange)
						To pH 1.8 (yellow)

						From pH 7.2 (yellow)
						To pH 8.8 (reddish-purple)

Loss on drying
At 110 Deg. C/1 hour:			<5%

Effective: 01/26/09