erythromycin and its Impurities
An antibacterial agent which is used for the treatment of infections caused in skin and respiratory tract. It exhibits bacteriostatic action by inhibiting the growth of bacteria. Reference standards of Erythromycin API, and its pharmacopeial, non pharmacopeial impurities, and stable isotopes are listed below.
(3S,4R,5R,6S,7S,9S,11S,12S,13R,14S)-6-((4-(Dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-7,12,13-trihydroxy-4-((5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy)-3,5,7,9,11,13-hexamethyl-14-propyloxacyclotetradecane-2,10-dione
(3S,4R,5R,6S,7S,9S,11S,12S,13R,14S)-6-((4-(Dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-7,12,13-trihydroxy-4-((5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy)-3,5,7,9,11,13-hexamethyl-14-propyloxacyclotetradecane-2,10-dione
Catalogue No.:PA 05 15620
CAS :
NA
Molecular Formula : C38H69NO13
Molecular Weight : 747.96
6-O-Methyl-2',4"-bis-O-(trimethylsilyl)-9-[O-(1-ethoxy-1-methylethyl)oxime] Erythromycin
6-O-Methyl-2',4"-bis-O-(trimethylsilyl)-9-[O-(1-ethoxy-1-methylethyl)oxime] Erythromycin
Catalogue No.:PA 05 0151000
CAS :
119665-62-2
Molecular Formula : C49H96N2O14Si2
Molecular Weight : 993.48
(3R,4S,5S,6R,7R,9R,11S,12R,13S,14R,E)-6-(((2S,3R,4S,6R)-4-(Dimethylamino)-6-methyl-3-((trimethylsilyl)oxy)tetrahydro-2H-pyran-2-yl)oxy)-14-ethyl-12,13-dihydroxy-7-methoxy-4-(((2R,4R,5S,6S)-4-methoxy-4,6-dimethyl-5-((trimethylsilyl)oxy)tetrahydro-2H-pyran-2-yl)oxy)-3,5,7,9,11,13-hexamethyl-10-(((trimethylsilyl)oxy)imino)oxacyclotetradecan-2-one
(3R,4S,5S,6R,7R,9R,11S,12R,13S,14R,E)-6-(((2S,3R,4S,6R)-4-(Dimethylamino)-6-methyl-3-((trimethylsilyl)oxy)tetrahydro-2H-pyran-2-yl)oxy)-14-ethyl-12,13-dihydroxy-7-methoxy-4-(((2R,4R,5S,6S)-4-methoxy-4,6-dimethyl-5-((trimethylsilyl)oxy)tetrahydro-2H-pyran-2-yl)oxy)-3,5,7,9,11,13-hexamethyl-10-(((trimethylsilyl)oxy)imino)oxacyclotetradecan-2-one
Catalogue No.:PA 05 0151004
CAS :
227612-77-3
Molecular Formula : C47H94N2O13Si3
Molecular Weight : 979.53
(3R,4S,5S,6R,7R,9R,11S,12R,13S,14R,E)-6-(((2S,3R,4S,6R)-4-(Dimethylamino)-6-methyl-3-((trimethylsilyl)oxy)tetrahydro-2H-pyran-2-yl)oxy)-14-ethyl-12,13-dihydroxy-7-methoxy-4-(((2R,4R,5S,6S)-4-methoxy-4,6-dimethyl-5-((trimethylsilyl)oxy)tetrahydro-2H-pyran-2-yl)oxy)-10-(methoxyimino)-3,5,7,9,11,13-hexamethyloxacyclotetradecan-2-one
(3R,4S,5S,6R,7R,9R,11S,12R,13S,14R,E)-6-(((2S,3R,4S,6R)-4-(Dimethylamino)-6-methyl-3-((trimethylsilyl)oxy)tetrahydro-2H-pyran-2-yl)oxy)-14-ethyl-12,13-dihydroxy-7-methoxy-4-(((2R,4R,5S,6S)-4-methoxy-4,6-dimethyl-5-((trimethylsilyl)oxy)tetrahydro-2H-pyran-2-yl)oxy)-10-(methoxyimino)-3,5,7,9,11,13-hexamethyloxacyclotetradecan-2-one
Catalogue No.:PA 05 0151005
CAS :
1570268-43-7
Molecular Formula : C45H88N2O13Si2
Molecular Weight : 921.37
(3R,4S,5S,6R,7R,9R,11S,12R,13S,14R,E)-6-(((2S,3R,4S,6R)-4-(Dimethylamino)-6-methyl-3-((trimethylsilyl)oxy)tetrahydro-2H-pyran-2-yl)oxy)-14-ethyl-12,13-dihydroxy-10-(hydroxyimino)-7-methoxy-4-(((2R,4R,5S,6S)-4-methoxy-4,6-dimethyl-5-((trimethylsilyl)oxy)tetrahydro-2H-pyran-2-yl)oxy)-3,5,7,9,11,13-hexamethyloxacyclotetradecan-2-one
(3R,4S,5S,6R,7R,9R,11S,12R,13S,14R,E)-6-(((2S,3R,4S,6R)-4-(Dimethylamino)-6-methyl-3-((trimethylsilyl)oxy)tetrahydro-2H-pyran-2-yl)oxy)-14-ethyl-12,13-dihydroxy-10-(hydroxyimino)-7-methoxy-4-(((2R,4R,5S,6S)-4-methoxy-4,6-dimethyl-5-((trimethylsilyl)oxy)tetrahydro-2H-pyran-2-yl)oxy)-3,5,7,9,11,13-hexamethyloxacyclotetradecan-2-one
Catalogue No.:PA 05 0151006
CAS :
1570268-41-5
Molecular Formula : C44H86N2O13Si2
Molecular Weight : 907.34
N-((2S,3R,4S,6R)-2-(((3R,4S,5S,6R,7R,9R,11R,12R,13S,14R)-14-Ethyl-7,12,13-trihydroxy-4-(((2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy)-3,5,7,9,11,13-hexamethyl-2,10-dioxooxacyclotetradecan-6-yl)oxy)-3-hydroxy-6-methyltetrahydro-2H-pyran-4-yl)-N-methylnitrous Amide
N-((2S,3R,4S,6R)-2-(((3R,4S,5S,6R,7R,9R,11R,12R,13S,14R)-14-Ethyl-7,12,13-trihydroxy-4-(((2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy)-3,5,7,9,11,13-hexamethyl-2,10-dioxooxacyclotetradecan-6-yl)oxy)-3-hydroxy-6-methyltetrahydro-2H-pyran-4-yl)-N-methylnitrous Amide
Catalogue No.:PA 05 0151012
CAS :
NA
Molecular Formula : C36H64N2O14
Molecular Weight : 748.91
Ethyl ((2S,3R,4S,6R)-2-(((3R,4S,5S,6R,7R,9R,11R,12R,13S,14R)-14-ethyl-7,12,13-trihydroxy-4-(((2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy)-3,5,7,9,11,13-hexamethyl-2,10-dioxooxacyclotetradecan-6-yl)oxy)-6-methyl-4-(methyl(nitroso)amino)tetrahydro-2H-pyran-3-yl) succinate
Ethyl ((2S,3R,4S,6R)-2-(((3R,4S,5S,6R,7R,9R,11R,12R,13S,14R)-14-ethyl-7,12,13-trihydroxy-4-(((2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy)-3,5,7,9,11,13-hexamethyl-2,10-dioxooxacyclotetradecan-6-yl)oxy)-6-methyl-4-(methyl(nitroso)amino)tetrahydro-2H-pyran-3-yl) succinate
Catalogue No.:PA 05 0151013
CAS :
NA
Molecular Formula : C42H72N2O17
Molecular Weight : 877.04
(3R,4S,5S,6R,7R,9R,11R,12R,13S,14R)-6-(((2S,3R,4S,6R)-4-(Dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-14-ethyl-7,12,13-trihydroxy-4-(((2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy)-3,5,7,9,11,13-hexamethyloxacyclotetradecane-2,10-dione Stearate
(3R,4S,5S,6R,7R,9R,11R,12R,13S,14R)-6-(((2S,3R,4S,6R)-4-(Dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-14-ethyl-7,12,13-trihydroxy-4-(((2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy)-3,5,7,9,11,13-hexamethyloxacyclotetradecane-2,10-dione Stearate
Catalogue No.:PA 05 0151019
CAS :
NA
Molecular Formula : C55H103NO15
Molecular Weight : 1018.42
(2R,3R,6R,8R,9R,10S,11S,12R)-2-((2R,3R)-2,3-Dihydroxypentan-2-yl)-9-(((2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-8-hydroxy-11-(((2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy)-3,6,8,10,12-pentamethyl-1-oxa-4-azacyclotridecan-13-one
(2R,3R,6R,8R,9R,10S,11S,12R)-2-((2R,3R)-2,3-Dihydroxypentan-2-yl)-9-(((2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-8-hydroxy-11-(((2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy)-3,6,8,10,12-pentamethyl-1-oxa-4-azacyclotridecan-13-one
Catalogue No.:PA 05 0151020
CAS :
200420-00-4
Molecular Formula : C37H70N2O12
Molecular Weight : 734.97
