Specification Product Name PYRONIN Y (G) Synonyms Pyronin G; Methyl pyronin; Tetramethyl pyronin CAS NO. 92-32-0 Molecular Formula C17H19CIN2O Molecular Weight 302.80 Appearance Green Crystalline Powder Structure     Tests    Limits Melting Point - 250 - 260 Deg. C Lambda Max - 548 (254) nm in 50% Ethanol Dye content - ~ 50% Solubility - H2O 30 mg/ml EGME 9 mg/ml EtOH 3mg/ml         REVISED: 1-1-2012