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

3,3,5,5-Tetramethylbenzidine

Synonyms:				TMB

CAS No.:				54827-17-7

Chemical Formula:			C16H20N2			

Formula Weight:			240.35

Appearance:				White to off-white to cream crystalline powder

Identification (IR):			To pass test

Assay (HPLC):			99.0% minimum

Melting Point:			167 - 170 deg. C

Loss on drying:			< 1 %

Residue on ignition:		0.2%

Solubility (5% ethyl acetate):	Clear to slightly hazy colorless to yellow to yellow-green or orange solution
 
Effective: 05/12/16