Menu
    Home / Products / Azithromycin Impurity R
    Azithromycin Impurity R

    Azithromycin Impurity R

    Synonym

    (1S,2R,3R,6R,7S,8S,9R,10R,12R,15R)-9-(((2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-3-ethyl-2,10-dihydroxy-7-(((2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy)-2,6,8,10,12,15-hexamethyl-4,16-dioxa-14-azabicyclo[11.2.1]hexadec-13-en-5-one;  Erythromycin A 9,11-Imino Ether

    Molecular Formula

    C37H66N2O12

    Molecular Weight

    730.94

    Catalogue Number

    AR-E02337

    Parent Drug

    Azithromycin

    CAS Number

    161193-44-8

    Common Package:10,25,50,100 mg

    Collections: Azithromycin

    Category: 161193-44-8 AR-E02337 Azithromycin C37H66N2O12

    RELATED PRODUCTS
    Azithromycin EP Impurity O

    Synonym

    (2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-11-(((2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-3,4,10-trihydroxy-13-(((2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy)-3,5,6,8,10,12,14-heptamethyl-2-propyl-1-oxa-6-azacyclopentadecan-15-one

    Molecular Formula

    C39H74N2O12

    Molecular Weight

    763.04

    Catalogue Number

    AR-A00991

    Parent Drug

    Azithromycin

    CAS Number

    763924-54-5
    Azithromycin EP Impurity K

    Synonym

    (2R,4aR,4'R,5'S,6'S,7R,8S,9R,10R,13R,15R,16R,17S,17aS)-16-(((2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-7-ethyl-5',8,9,15-tetrahydroxy-4'-methoxy-4',6',8,10,11,13,15,17-octamethylhexadecahydro-4H-spiro[[1,3]dioxino[4,5-m][1,6]oxaazacyclopentadecine-2,2'-pyran]-5(4aH)-one

    Molecular Formula

    C38H70N2O13

    Molecular Weight

    762.99

    Catalogue Number

    AR-A00992

    Parent Drug

    Azithromycin

    CAS Number

    612534-95-9
    Azithromycin EP Impurity C

    Synonym

    (2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-13-(((2R,4R,5S,6S)-4,5-dihydroxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy)-11-(((2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-2-ethyl-3,4,10-trihydroxy-3,5,6,8,10,12,14-heptamethyl-1-oxa-6-azacyclopentadecan-15-one

    Molecular Formula

    C37H70N2O12

    Molecular Weight

    734.98

    Catalogue Number

    AR-A00993

    Parent Drug

    Azithromycin

    CAS Number

    620169-47-3
    Azithromycin EP Impurity K

    Synonym

    (2R,4aR,4'R,5'S,6'S,7R,8S,9R,10R,13R,15R,16R,17S,17aS)-16-(((2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-7-ethyl-5',8,9,15-tetrahydroxy-4'-methoxy-4',6',8,10,11,13,15,17-octamethylhexadecahydro-4H-spiro[[1,3]dioxino[4,5-m][1,6]oxaazacyclopentadecine-2,2'-pyran]-5(4aH)-one

    Molecular Formula

    C38H70N2O13

    Molecular Weight

    762.99

    Catalogue Number

    AR-A00997

    Parent Drug

    Azithromycin

    CAS Number

    612534-95-9
    Azithromycin EP Impurity D

    Synonym

    (2R,3S,4R,5R,8R,10R,11R,12S,13S,14S)-11-(((2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-2-ethyl-3,4,10-trihydroxy-13-(((2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy)-14-(hydroxymethyl)-3,5,6,8,10,12-hexamethyl-1-oxa-6-azacyclopentadecan-15-one

    Molecular Formula

    C38H72N2O13

    Molecular Weight

    765

    Catalogue Number

    AR-A00998

    Parent Drug

    Azithromycin

    CAS Number

    612069-26-8
    Azithromycin EP Impurity N

    Synonym

    (2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-2-ethyl-3,4,10-trihydroxy-13-(((2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy)-11-(((2S,3S,6R)-3-hydroxy-6-methyl-4-oxotetrahydro-2H-pyran-2-yl)oxy)-3,5,6,8,10,12,14-heptamethyl-1-oxa-6-azacyclopentadecan-15-one

    Molecular Formula

    C36H65NO13

    Molecular Weight

    719.91

    Catalogue Number

    AR-A13978

    Parent Drug

    Azithromycin

    CAS Number

    612069-25-7
    Azithromycin EP Impurity E

    Synonym

    (2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-11-(((2S,3R,4S,6R)-4-amino-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-2-ethyl-3,4,10-trihydroxy-13-(((2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy)-3,5,6,8,10,12,14-heptamethyl-1-oxa-6-azacyclopentadecan-15-one

    Molecular Formula

    C36H68N2O12

    Molecular Weight

    720.94

    Catalogue Number

    AR-A13979

    Parent Drug

    Azithromycin

    CAS Number

    612069-27-9
    Azithromycin EP Impurity M

    Synonym

    N-((2S,3R,4S,6R)-2-(((2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-2-ethyl-3,4,10-trihydroxy-13-(((2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy)-3,5,6,8,10,12,14-heptamethyl-15-oxo-1-oxa-6-azacyclopentadecan-11-yl)oxy)-3-hydroxy-6-methyltetrahydro-2H-pyran-4-yl)formamide

    Molecular Formula

    C37H68N2O13

    Molecular Weight

    748.95

    Catalogue Number

    AR-A13980

    Parent Drug

    Azithromycin

    CAS Number

    765927-71-7
    Azithromycin EP Impurity G

    Synonym

    N-((2S,3R,4S,6R)-2-(((2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-2-ethyl-3,4,10-trihydroxy-13-(((2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy)-3,5,6,8,10,12,14-heptamethyl-15-oxo-1-oxa-6-azacyclopentadecan-11-yl)oxy)-3-hydroxy-6-methyltetrahydro-2H-pyran-4-yl)-N,4-dimethylbenzenesulfonamide

    Molecular Formula

    C44H76N2O14S

    Molecular Weight

    889.17

    Catalogue Number

    AR-A13983

    Parent Drug

    Azithromycin

    CAS Number

    612069-31-5
    Azithromycin EP Impurity Q

    Synonym

    N-(4-(N-(2-(((2R,3R,4S,5R,8R,10R,11R,12S,13S,14R)-2-ethyl-4,10-dihydroxy-13-((5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy)-3,5,6,8,10,12,14-heptamethyl-15-oxo-1-oxa-6-azacyclopentadecan-11-yl)oxy)-3-hydroxy-6-methyltetrahydro-2H-pyran-4-yl)sulfamoyl)phenyl)acetamide

    Molecular Formula

    C44H75N3O15S

    Molecular Weight

    918.15

    Catalogue Number

    AR-A13984

    Parent Drug

    Azithromycin

    CAS Number

    99290-97-8
    Azithromycin EP Impurity H

    Synonym

    N-(4-(N-((2S,3R,4S,6R)-2-(((2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-2-ethyl-3,4,10-trihydroxy-13-(((2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy)-3,5,6,8,10,12,14-heptamethyl-15-oxo-1-oxa-6-azacyclopentadecan-11-yl)oxy)-3-hydroxy-6-methyltetrahydro-2H-pyran-4-yl)-N-methylsulfamoyl)phenyl)acetamide

    Molecular Formula

    C45H77N3O15S

    Molecular Weight

    932.19

    Catalogue Number

    AR-A13985

    Parent Drug

    Azithromycin

    CAS Number

    612069-30-4
    Azithromycin EP Impurity A

    Synonym

    (2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-11-(((2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-2-ethyl-3,4,10-trihydroxy-13-(((2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy)-3,5,8,10,12,14-hexamethyl-1-oxa-6-azacyclopentadecan-15-one

    Molecular Formula

    C37H70N2O12

    Molecular Weight

    734.98

    Catalogue Number

    AR-A13988

    Parent Drug

    Azithromycin

    CAS Number

    76801-85-9
    Azithromycin EP Impurity B

    Synonym

    (2R,3R,4S,5R,8R,10R,11R,12S,13S,14R)-11-(((2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-2-ethyl-4,10-dihydroxy-13-(((2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy)-3,5,6,8,10,12,14-heptamethyl-1-oxa-6-azacyclopentadecan-15-one

    Molecular Formula

    C38H72N2O11

    Molecular Weight

    733

    Catalogue Number

    AR-A13992

    Parent Drug

    Azithromycin

    CAS Number

    307974-61-4
    Azithromycin EP Impurity P

    Synonym

    (2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-11-(((2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-2,6-diethyl-3,4,10-trihydroxy-13-(((2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy)-3,5,8,10,12,14-hexamethyl-1-oxa-6-azacyclopentadecan-15-one

    Molecular Formula

    C39H74N2O12

    Molecular Weight

    763.01

    Catalogue Number

    AR-A13994

    Parent Drug

    Azithromycin

    CAS Number

    92594-45-1
    Erythromycin A 6,9-Imino Ether

    Synonym

    (3R,4R,5S,6R,9R,10S,11S,12R,15R,E)-12-(((2S)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-6-ethyl-4,5-dihydroxy-10-(((2R,5S)-5-hydroxy-4-methoxy-4,6-dimethyltetrahydro-2H-pyran-2-yl)oxy)-3,5,9,11,13,15-hexamethyl-7,16-dioxa-2-azabicyclo[11.2.1]hexadec-1-en-8-one

    Molecular Formula

    C37H66N2O12

    Molecular Weight

    730.94

    Catalogue Number

    AR-E02336

    Parent Drug

    Azithromycin

    CAS Number

    99290-97-8