*** CHEMICAL IDENTIFICATION *** RTECS NUMBER : SP5740000 CHEMICAL NAME : Phenothiazin-5-ium, 3,7-bis(dimethylamino)-, chloride, trihydrate CAS REGISTRY NUMBER : 7220-79-3 LAST UPDATED : 199712 DATA ITEMS CITED : 2 MOLECULAR FORMULA : C16-H18-N3-S.Cl.3H2-O MOLECULAR WEIGHT : 373.94 COMPOUND DESCRIPTOR : Tumorigen SYNONYMS/TRADE NAMES : * 3,7-Bis(dimethylamino)phenothiazin-5-ium chloride trihydrate * C.I. Basic Blue 9, trihydrate * Methylene Blue trihydrate *** STATUS IN U.S. *** NTP Carcinogenesis studies; selected, October 1997 NTP Carcinogenesis studies; test completed (peer review), October 1997 *** END OF RECORD ***