产品与服务

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
CAS 13553-79-2
分子式 C37H45NO12
分子量 695.75
EINECS 236-938-4
结构式 利福霉素S
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.)
Merck 14,8217
InChIKey BTVYFIMKUHNOBZ-ODRIEIDWSA-N