Erythromycin

Erythromycin Erythromycin:

(3R,4S,5S,6R,7R,9R,11R,12R,13S,14R)-4-[(2,6-Dideoxy-3-C-methyl-3-O-methyl-α-L-ribo-hexopyranosyl)oxy]-14-ethyl-7,12,13-trihydroxy-3,5,7,9,11,13-hexamethyl-6-[(3,4,6-trideoxy-3-dimethylamino-β-D-xylo-hexopyranosyl)-oxy]oxacyclotetradecane-2,10-dione ;

CAS : 114-07-8 ; C37H67NO13 ; Mol. Wt.: 733.93 ;

 

Erythromycin Impurity A Erythromycin  Impurity A :

(3R,4S,5S,6R,7R,9R,11R,12R,13S,14R)-4-[(2,6-Dideoxy-3C-methyl-3-O-methyl-α-L-ribo-hexopyranosyl)oxy]-14-ethyl-7,12,13-trihydroxy-3-(hydroxymethyl)-5,7,9,11,13-pentamethyl-6-[[3,4,6-trideoxy-3-(dimethylamino)-β-D-xylo-hexopyranosyl]oxy] oxacyclotetradecane-2,10-dione ; C37H67NO14 ; Mol. Wt.: 749.93 ;

 

 
Erythromycin Impurity B Erythromycin  Impurity B :

 

(3R,4S,5S,6R,7R,9R,11R,12R,13S,14R)-4-[(2,6-Dideoxy-3-C-methyl-3-O-methyl-α-L-ribo-hexopyranosyl)oxy]-14-ethyl-7,12,13-trihydroxy-3,5,7,9,11,13-hexamethyl-6-[[3,4,6-trideoxy-3-(methylamino)-β-D-xylohexopyranosyl]oxy]oxacyclotetradecane-2,10-dione ; CAS : 992-62-1 ; C36H65NO13 ; Mol. Wt.: 719.9 ;

 

Erythromycin Impurity C Erythromycin  Impurity C :

 

(2S,4aR,4′R,5′S,6′S,7R,8S,9R,10R,12R,14R,15R,16S)-7-Ethyl-5′,8,9,14-tetrahydroxy-4′-methoxy-4′,6′,8,10,12,14,16-heptamethyl-15-[[3,4,6-trideoxy-3-(dimethylamino)-β-D-xylo-hexopyranosyl]oxy]hexadecahydrospiro[5H,11H-1,3-dioxino[5,4c]oxacyclotetradecin-2,2′-pyrane]-5,11-dione ;  C37H65NO14 ;  Mol. Wt.: 747.91 ;
Erythromycin Impurity D Erythromycin Impurity D:

 

(1S,2R,3R,4S,5R,8R,9S,10S,11R,12R,14R)-9-[(2,6-Dideoxy-3-C-methyl-3-O-methyl-α-L-ribo-hexopyranosyl)oxy]-5-ethyl-3-hydroxy-2,4,8,10,12,14-hexamethyl-11-[[3,4,6-trideoxy-3-(dimethylamino)-β-D-xylo-hexopyranosyl]oxy]-6,15,16-trioxatricyclo[10.2.1.11,4]hexadecan-7-one ;  CAS : 23893-13-2 ; C37H65NO12 ; Mol. Wt.: 715.91 ;
Erythromycin Impurity E Erythromycin Impurity E :

 

(2R,3R,4S,5R,8R,9S,10S,11R,12R)-9-[(2,6-Dideoxy-3-C-methyl-3-O-methyl-α-L-ribo-hexopyranosyl)oxy]-5-ethyl-3,4-dihydroxy-2,4,8,10,12,14-hexamethyl-11-[[3,4,6-trideoxy-3-(dimethylamino)-β-D-xylohexopyranosyl]oxy]-6,15-dioxabicyclo[10.2.1]pentadec-1(14)-en-7-one ; CAS : 33396-29-1 ; C37H65NO12 ; Mol. Wt.: 715.91 ;
Erythromycin Impurity F Erythromycin Impurity F:

 

(2R,3R,6R,7S,8S,9R,10R)-7-[(2,6-Dideoxy-3-C-methyl-3-O-methyl-α-L-ribo-hexopyranosyl)oxy]-3-[(1R,2R)-1,2-dihydroxy-1-methylbutyl]-2,6,8,10,12-pentamethyl-9-[[3,4,6-trideoxy-3-(dimethylamino)-β-D-xylohexopyranosyl]oxy]-4,13-dioxabicyclo[8.2.1 ]tridec-1(12)-en-5-one ; CAS : 105882-69-7 ; C37H65NO12 ; Mol. Wt.: 715.91 ;