11056-12-5 Antibiotic 197ct Cirolemicina [INN-Spanish] Cirolemycin Cirolemycin [USAN:INN] Cirolemycine [INN-French] Cirolemycinum [INN-Latin] Cirolerosus Crystalline antibiotic 197CT NSC 77950 U 12241 U-12,241 Upjohn 197ct