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

AZURE A

Synonyms:			C.I. 52005; 3-Amino-7-(dimethylamino)phenothizin-5-ium
				chloride; 7-(Dimethylamino)-3-amino-3H-phenothiozine
				hydrochloride

CAS No.:					531-53-3

Chemical Formula:				C14H14CIN3S

Formula Weight:				291.80

Description: 					Dark Green Crystalline Powder

Assay:						75 % minimum

Solubility (0.1% aq.):			Clear blue solution

Loss on drying at 110 Deg.C
(1 hour):					< 8.0%

Absorptivity 1%/1cm,
At Lambda max. 633.0 nm:			> 1120

Melting Point:				290 deg. C (dec.)

Solubility:					Soluble in water, Methanol, and glycerol,
Slightly soluble in ethanol.

Certified:				            Certified by the Biological Stains 
						Commission		

Effective: 01/27/18