Azithromycin
Azithromycin Dihydrate
| Cat. No. | VNS-AZM-00 |
| CAS. No. | 117772-70-0 |
| MolecularFormula | C38H76N2O14 |
| Molecular Weight | 748.98 g/mol |
| Synonyms | 1-Oxa-6-azacyclopentadecan-15-one,13-[(2,6-dideoxy-3-C-methyl-3-O-methyl-alpha-L-ribo-hexopyranosyl)oxy]-2-ethyl-3,4,10-trihydroxy-3,5,6,8,10,12,14-heptamethyl-11-[[3,4,6-trideoxy-3-(dimethylamino)-beta-D-xylo-hexopyranosyl]oxy]-, dihydrate, (2R,3S,4R,5R,8R,10R,11R,12S,13S,14R) |
| Chemical Name | (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)-3,5,6,8,10,12,14-heptamethyl-1-oxa-6-azacyclopentadecan-15-one dihydrate |
| Category | Working Standards |
| Product Stock Status | Please Enquire |
Azithromycin EP Impurity A
| Cat. No. | VNS-AZM-0101 |
| CAS. No. | 76801-85-9 |
| Molecular Formula | C37H70N2O12 |
| Molecular Weight | 734.96 g/mol |
| Synonyms | AzaerythromycinA;Desmethylazithromycin;Desmethyl Azithromycin;9-Deoxo-9a-aza-9a-homo Erythromycin A |
| Chemical Name | (2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-11-[(2S,3R,4S,6R)-4-(Dimethylamino)-3-hydroxy-6-methyloxan-2-yl]oxy-2-ethyl-3,4,10-trihydroxy-13-[(2R,4R,5S,6S)-5-hydroxy-4-methoxy-4,6-dimethyloxan-2-yl]oxy-3,5,8,10,12,14-hexamethyl-1-oxa-6-azacyclopentadecan-15-one |
| Category | Impurity Standards |
| Product Stock Status | Under Synthesis |
Azithromycin EP Impurity B
| Cat. No. | VNS-A0102 |
| CAS. No. | 307974-61-4 |
| MolecularFormula | C38H72N2O11 |
| Molecular Weight | 732.99 g/mol |
| Synonyms | NA |
| Chemical Name | 1-Oxa-6-azacyclopentadecan-15-one,13-[(2,6-dideoxy-3-C-methyl-3-O-methyl-alpha-L-ribo-hexopyranosyl)oxy]-2-ethyl-4,10-dihydroxy-3,5,6,8,10,12,14-heptamethyl-11-[[3,4,6-trideoxy-3-(dimethylamino)-beta-D-xylo-hexopyranosyl]oxy]-,(2R,3R,4R,5R,8R,10R,11R,12R,13S,14R) |
| Category | Impurity Standards |
| Product Stock Status | Under Synthesis |
Azithromycin EP Impurity C
| Cat. No. | VNS-A0103 |
| CAS. No. | 620169-47-3 |
| MolecularFormula | C37H70N2O12 |
| Molecular Weight | 734.96 g/mol |
| Synonyms | NA |
| Chemical Name | (2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-13-[(2,6-Dideoxy-3-C-methyl-alpha-L-ribo-hexopyranosyl)oxy]-2-ethyl-3,4,10-trihydroxy-3,5,6,8,10,12,14-heptamethyl-11-[[3,4,6-trideoxy-3-(dimethylamino)-beta-D-xylo-hexopyranosyl]oxy]-1-oxa-6-azacyclopentadecan-15-one |
| Category | Impurity Standards |
| Product Stock Status | Under Synthesis |
Azithromycin EP Impurity D
| Cat. No. | VNS-A0104 |
| CAS. No. | 612069-26-8 |
| Molecular Formula | C38H72N2O13 |
| Molecular Weight | 764.98 g/mol |
| Synonyms | Azithromycin F |
| Chemical Name | 14-Demethyl-14-(hydroxymethyl)azithromycin |
| Category | Impurity Standards |
| Product Stock Status | Under Synthesis |
Azithromycin EP Impurity E
| Cat. No. | VNS-A0105 |
| CAS. No. | 612069-27-9 |
| Molecular Formula | C36H68N2O12 |
| Molecular Weight | 720.93 g/mol |
| Synonyms | Aminoazithromycin A;N`,N`-Di(desmethyl)azithromycin |
| Chemical Name | (2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-11-[(3-Amino-3,4,6-trideoxy-beta-D-xylo-hexopyranosyl)oxy]-13-[(2,6-dideoxy-3-C-methyl-3-O-methyl-alpha-L-ribo-hexopyranosyl)oxy]-2-ethyl-3,4,10-trihydroxy-3,5,6,8,10,12,14-heptamethyl-1-oxa-6-azacyclopentadecan-15-one |
| Category | Impurity Standards |
| Product Stock Status | Under Synthesis |
Azithromycin EP Impurity F
| Cat. No. | VNS-A0106 |
| CAS. No. | 612069-28-0 |
| MolecularFormula | C38H70N2O13 |
| Molecular Weight | 762.97 g/mol |
| Synonyms | 3`-N-Demethyl-3`-N-formylazithromycin |
| Chemical Name | (2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-13-[(2,6-Dideoxy-3-C-methyl-3-O-methyl-alpha-ribo-hexopyranosyl)oxy]-2-ethyl-3,4,10-trihydroxy-3,5,6,8,10,12,14-heptamethyl-11-[[3,4,6-trideoxy-3-(formylmethylamino)-beta-D-xylo-hexopyranosyl]oxy]-1-oxa-6-azacyclopentadecan-15-one |
| Category | Impurity Standards |
| Product Stock Status | Under Synthesis |
Azithromycin EP Impurity G
| Cat. No. | VNS-A0107 |
| CAS. No. | 612069-31-5 |
| MolecularFormula | C44H76N2O14S |
| Molecular Weight | 889.14 g/mol |
| Synonyms | 3`-N-demethyl-3`-N-[(4-methylphenyl)sulfonyl]azithromycin |
| Chemical Name | (2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-13-[(2,6-Dideoxy-3-C-methyl-3-O-methyl-alpha-L-ribo-hexopyranosyl)oxy]-2-ethyl-3,4,10-trihydroxy-3,5,6,8,10,12,14-heptamethyl-11-[[3,4,6-trideoxy-3-[methyl[(4-methylphenyl)sulfonyl]amino]-beta-D-xylo-hexopyranosyl]oxy]-1-oxa-6-azacyclopentadecan-15-one |
| Category | Impurity Standards |
| Product Stock Status | Under Synthesis |
Azithromycin EP Impurity H
| Cat. No. | VNS-A0108 |
| CAS. No. | 612069-30-4 |
| MolecularFormula | C45H77N3O15S |
| Molecular Weight | 932.17 g/mol |
| Synonyms | 3`-N-[[4-(Acetylamino)phenyl]sulfonyl]-3`-N-demethyl Azithromycin |
| Chemical Name | (2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-11-[[3-[[[4-(Acetylamino)phenyl]sulfonyl]methylamino]-3,4,6-trideoxy-beta-D-xylo-hexopyranosyl]oxy]-13-[(2,6-dideoxy-3-C-methyl-3-O-methyl-alpha-L-ribo-hexopyranosyl)oxy]-2-ethyl-3,4,10-trihydroxy-3,5,6,8,10,12,14-heptamethyl-1-oxa-6-azacyclopentadecan-15-one |
| Category | Impurity Standards |
| Product Stock Status | Under Synthesis |
Azithromycin EP Impurity I
| Cat. No. | VNS-A0109 |
| CAS. No. | 172617-84-4 |
| Molecular Formula | C37H70N2O12 |
| Molecular Weight | 734.96 g/mol |
| Synonyms | N`-Desmethyl Azithromycin;(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,4S,6R)-3-hydroxy-6-methyl-4-(methylamino)tetrahydro-2H-pyran-2-yl)oxy)-3,5,6,8,10,12,14-heptamethyl-1-oxa-6-azacyclopentadecan-15-one |
| Chemical Name | (2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-13-[(2,6-dideoxy-3-C-methyl-3-O-methyl-alpha-L-ribo-hexopyranosyl)oxy]-2-ethyl-3,4,10-trihydroxy-3,5,6,8,10,12,14-heptamethyl-11-[[3,4,6-trideoxy-3-(methylamino)-Beta-D-xylo-hexopyranosyl]oxy]-1-oxa-6-azacyclopentadecan-15-one; |
| Category | Impurity Standards |
| Product Stock Status | Under Synthesis |
Azithromycin EP Impurity J
| Cat. No. | VNS-A0110 |
| CAS. No. | 117693-41-1 |
| Molecular Formula | C30H58N2O9 |
| Molecular Weight | 590.79 g/mol |
| Synonyms | Descladinose Azithromycin |
| Chemical Name | (2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-2-Ethyl-3,4,10,13-tetrahydroxy-3,5,6,8,10,12,14-heptamethyl-11-[[3,4,6-trideoxy-3-(dimethylamino)-beta-D-xylo-hexopyranosyl]oxy]-1-oxa-6-azacyclopentadecan-15-one |
| Category | Impurity Standards |
| Product Stock Status | Under Synthesis |
Azithromycin EP Impurity K
| Cat. No. | VNS-A0111 |
| CAS. No. | 612534-95-9 |
| Molecular Formula | C38H70N2O13 |
| Molecular Weight | 762.97 g/mol |
| Synonyms | Azithromycin E Azithromycin Impurity 11 |
| Chemical Name | (2S,4`R,4aR,5`S,6`S,7R,8S,9R,10R,13R,15R,16R,17S,17aS)-7-Ethyloctadecahydro-5?,8,9,15-tetrahydroxy-4?-methoxy-4?,6?,8,10,11,13,15,17-octamethyl-16-[[3,4,6-trideoxy-3-(dimethylamino)-beta-D-xylo-hexopyranosyl]oxy]spiro[5H-1,3-dioxino[4,5-m][1,6]oxaazacyclopentadecine-2,2?-[2H]pyran]-5-one |
| Category | Impurity Standards |
| Product Stock Status | Under Synthesis |
Azithromycin EP Impurity L
| Cat. No. | VNS-A0112 |
| CAS. No. | 90503-06-3 |
| Molecular Formula | C38H72N2O13 |
| Molecular Weight | 764.98 g/mol |
| Synonyms | Azithromycin N-Oxide |
| Chemical Name | (2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-13-[(2,6-Dideoxy-3-C-methyl-3-O-methyl-alpha-L-ribo-hexopyranosyl)oxy]-2-ethyl-3,4,10-trihydroxy-3,5,6,8,10,12,14-heptamethyl-11-[[3,4,6-trideoxy-3-(dimethyloxidoamino)-beta-D-xylo-hexopyranosyl]oxy]-1-oxa-6-azacyclopentadecan-15-one |
| Category | Impurity Standards |
| Product Stock Status | Under Synthesis |
Azithromycin EP Impurity M
| Cat. No. | VNS-A0113 |
| CAS. No. | 765927-71-7 |
| Molecular Formula | C37H68N2O13 |
| Molecular Weight | 748.94 g/mol |
| Synonyms | 3`-N,N-Di(desmethyl)-3'-N-formyl Azithromycin |
| Chemical Name | 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 |
| Category | Impurity Standards |
| Product Stock Status | Under Synthesis |
Azithromycin EP Impurity N
| Cat. No. | VNS-A0114 |
| CAS. No. | 612069-25-7 |
| Molecular Formula | C36H65NO13 |
| Molecular Weight | 719.90 g/mol |
| Synonyms | 3`-De(dimethylamino)-3`-oxoazithromycin |
| Chemical Name | (2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-11-[[4,6-dideoxy-beta-D-erythro-hexopyranos-3-ulos-1-yl]oxy]-13-[(2,6-dideoxy-3-C-methyl-3-O-methyl-alpha-L-ribo-hexopyranosyl)oxy]-2-ethyl-3,4,10-trihydroxy-3,5,6,8,10,12,14-heptamethyl-1-oxa-6-azacyclopentadecan-15-one |
| Category | Impurity Standards |
| Product Stock Status | Under Synthesis |
Azithromycin EP Impurity O
| Cat. No. | VNS-A0115 |
| CAS. No. | 763924-54-5 |
| Molecular Formula | C39H74N2O12 |
| Molecular Weight | 763.01 g/mol |
| Synonyms | 2-Desethyl-2-propylazithromycin |
| Chemical Name | (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 |
| Category | Impurity Standards |
| Product Stock Status | Under Synthesis |
Azithromycin EP Impurity P
| Cat. No. | VNS-A0116 |
| CAS. No. | 92594-45-1 |
| Molecular Formula | C39H74N2O12 |
| Molecular Weight | 763.00 g/mol |
| Synonyms | Azithromycin N-Ethyl |
| Chemical Name | (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 |
| Category | Impurity Standards |
| Product Stock Status | Under Synthesis |
Azithromycin EP Impurity Q
| Cat. No. | VNS-A0117 |
| CAS. No. | 2095879-65-3 |
| Molecular Formula | C44H75N3O15S |
| Molecular Weight | 918.15 g/mol |
| Synonyms | 3`-N-[[4-(Acetylamino)phenyl]sulfonyl]-3`-(N,N-didemethyl)azithromycin |
| Chemical Name | 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)sulfamoyl)phenyl)acetamide |
| Category | Impurity Standards |
| Product Stock Status | Under Synthesis |
Azithromycin EP Impurity R
| Cat. No. | VNS-A0118 |
| CAS. No. | 99290-97-8 |
| Molecular Formula | C37H66N2O12 |
| Molecular Weight | 730.93 g/mol |
| Synonyms | Erythromycin A 6,9 Imino Ether |
| Chemical Name | (3R,4R,5S,6R,9R,10S,11S,12R,13R,15R,Z)-12-(((2S,3R,4S,6R)-4-(dimethylamino)-3-hydroxy-6-methyltetrahydro-2H-pyran-2-yl)oxy)-6-ethyl-4,5-dihydroxy-10-(((4R,5R,6S)-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 |
| Category | Impurity Standards |
| Product Stock Status | Under Synthesis |
Azithromycin EP Impurity S
| Cat. No. | VNS-A0119 |
| CAS. No. | 161193-44-8 |
| Molecular Formula | C37H66N2O12 |
| Molecular Weight | 730.93 g/mol |
| Synonyms | NA |
| Chemical Name | (1R,2R,3R,6R,7S,8S,9R,10R,12R,15R)-7-[(2,6-Dideoxy-3-C-methyl-3-O-methyl-α-L-ribo-hexopyranosyl)oxy]-3-ethyl-2,10-dihydroxy-2,6,8,10,12,15-hexamethyl-9-[[3,4,6-trideoxy-3-(dimethylamino)-β-D-xylo-hexopyranosyl]oxy]-4,,16-Dioxa-14-azabicyclo[11.2.1]hexadec-13-en-5-one |
| Category | Impurity Standards |
| Product Stock Status | Under Synthesis |
Azithromycin Nitrosamine Impurity
| Cat. No. | VNS-A0120 |
| CAS. No. | NA |
| Molecular Formula | C37H69N3O13 |
| Molecular Weight | 763.96 g/ mol |
| Synonyms | Azithromycin Nitrosamine Impurity |
| Chemical Name | 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-methylnitrous amide |
| Category | Impurity Standards |
| Product Stock Status | In Stock |