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

NITRO BLUE TETRAZOLIUM CHLORIDE

Synonyms:				NITROTETRAZOLIUM BLUE CHLORIDE
                                                            NBT, NITRO BT

Chemical Formula:			C40H30O6N10Cl2

Formula Weight:			817.65

CAS No.:				298-83-9

Appearance:				Yellow Crystalline Powder

Identification (IR):			Conforms to standard

Assay (HPLC):			90.0 % minimum

Sulfated Ash:			0.3 % maximum

Solubility (10mg/ml, H2O):	Clear yellow solution

Melting Point:			184 deg. C minimum

Loss on drying (Karl Fisher): 	4.5 % maximum

Effective: 01/01/19