Title: Lumichrome
CAS Registry Number: 1086-80-2
CAS Name: 7,8-Dimethylbenzo[g]pteridine-2,4-(1H,3H)-dione
Additional Names: 7,8-dimethylalloxazine; 6,7-dimethylalloxazine
Molecular Formula: C12H10N4O2
Molecular Weight: 242.23
Percent Composition: C 59.50%, H 4.16%, N 23.13%, O 13.21%
Literature References: Irradiation product of riboflavine. Isoln: Karrer et al., Helv. Chim. Acta 17, 1010 (1934). Prepn: Tishler, Wellman, US 2417143 (1947 to Merck & Co.); Cresswell, Wood, J. Chem. Soc. 1960, 4768; Bardos et al., US 3057865 (1962 to Armour Pharm. Co.); Seng, Ley, Angew. Chem. 84, 1061 (1972).
Properties: Pale yellow crystals from pyridine or pyridine + alcohol, mp >300°. Sparingly sol in methanol and 90% hot ethanol, water and chloroform. The aqueous, alcoholic and chloroformic solns fluoresce blue. Absorption spectrum: Karrer et al., loc. cit.
Melting point: mp >300° |