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

MARTIUS YELLOW

Synonyms:				Acid Yellow 24;  C.I. 10315;
2,4-Dinitro-1-naphthol

CAS No:				605-69-6

Chemical Formula:			C10H6N2O5
  
Formula Weight:			234.17

Appearance:				Orange to brownish-yellow to yellow powder

Loss on drying:			4.5% maximum

Solubility:				Clear, yellow to dark yellow solution
(1 mg/ml methanol)

UV-Vis				E(370+ 3)nm =   6,000 minimum
(C = 0.01 g/l in Methanol)		E(293+ 3)nm =   9,000 minimum
E(249+ 3)nm = 14,000 minimum

Effective: 04/04/11