| 中文名利福霉素S 中文同义利福霉素 S;利福霉素;2,7-(环氧十五碳环[1,11,13]三烯亚氨基)萘并[2,1-B]呋喃-1,6,9,11(2H)-四酮,5,17,19,21-四羟基-23- 甲氧基-2,4,12,16,18,20,22-七甲基-,21-乙酸酯;利福霉素钠EP杂质E;利福昔明杂质E (EP/BP);利福霉素-D4;利福平霉素;利福霉素S英文名Rifamycin S英文同义1,4-dideoxy-1,4-dihydro-1,4-dioxo-rifamycin;2,7-(epoxypentadeca(1,11,13)trienimino)naphtho(2,1-b)furan-1,6,9,11(2h)-tetron;4-dideoxy-1,4-dihydro-1,4-dioxo-rifamycin;RIFAMPICIN S;RIFAMYCIN S;Rifaximin EP Impurity E (Rifamycin S);2,7-(Epoxypentadeca[1,11,13]trienimino)naphtho[2,1-b]furan-1,6,9,11(2H)-tetrone, 5,17,19,21-tetrahydroxy-23-methoxy-2,4,12,16,18,20,22-heptamethyl-, 21-acetate (7CI,8CI);Rifamycin EP Impurity B CAS13553-79-2 分子式C37H45NO12 分子量695.75 EINECS236-938-4 结构式  性质熔点179-181°C (dec.) 比旋光度D20 +476° (c = 0.1 in methanol) 沸点700.89°C (rough estimate) 密度1.2387 (rough estimate) 折射率1.6630 (estimate) 形态neat 酸度系数(pKa)3.85±0.70(Predicted) 最大波长(λmax)390nm(MeOH)(lit.)Merck14,8217InChIKeyBTVYFIMKUHNOBZ-ODRIEIDWSA-N | |||