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

4-PHENYLAZOPHENOL

Synonyms:				4-Hydroxyazobenzene;
Solvent Yellow 7; C.I. 11800

CAS No.:				1689-82-3

Chemical Formula:			C12H10N2O

Formula Weight:			198.2

Appearance:				Yellow to gold powder

Assay:					98% minimum

Lambda max.:			347nm in methanol
      
Melting Point:			150 °C to 152 °C (lit.)

Solubility:				Clear, dark yellow solution
 1 mg/ml. EtOH

Effective Date: 12/30/08