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76801-85-9Azithromycin EP Impurity A
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| Catalogue No.: | VL1860013 |
|---|---|
| CAS No.: | 76801-85-9 |
| Mol. Formula: | C37H70N2O12 |
| Mol. Weight: | 734.95 g/mol |
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Additional information on CAS 76801-85-9
Parent drug
Azithromycin/ ErythromycinIUPAC Name
6-demethyl AzithromycinPharmacopeial Synonyms
Azaerythromycin A; 9-Deoxo-9a-aza-9a-homoerythromycin ASynonyms
N6-Demethylazithromycin; 10-Dihydro-10-deoxo-11-azaerythromycin A; (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-oneSmiles
CC[C@@H]1[C@@]([C@@H]([C@H](NC[C@@H](C[C@@]([C@@H]([C@H]([C@@H]([C@H](C(=O)O1)C)O[C@H]2C[C@@]([C@H]([C@@H](O2)C)O)(C)OC)C)O[C@H]3[C@@H]([C@H](C[C@H](O3)C)N(C)C)O)(C)O)C)C)O)(C)OInChI
InChI=1S/C37H70N2O12/c1-14-26-37(10,45)30(41)23(6)38-18-19(2)16-35(8,44)32(51-34-28(40)25(39(11)12)15-20(3)47-34)21(4)29(22(5)33(43)49-26)50-27-17-36(9,46-13)31(42)24(7)48-27/h19-32,34,38,40-42,44-45H,14-18H2,1-13H3/t19-,20-,21+,22-,23-,24+,25+,26-,27+,28-,29+,30-,31+,32-,34+,35-,36-,37-/m1/s1Shipping Condition
Ambient TemperatureCharacterization Data (Included)
HPLC, MASS/LC-MS, 1H NMR, FT-IR, Potency, and Structure Elucidation Report (SER).Additional Characterization Data
QNMR, D2O Exchange, 13C NMR, 13C APT, COSY NMR, NOESY NMR, 15N NMR, HSQC NMR, HMQC NMR, and HMBC NMR. These are available upon request and may be free or subject to additional charges.Description
Azithromycin EP Impurity A, CAS 76801-85-9, is identified as Azaerythromycin A, also termed N6-Demethylazithromycin or 9-Deoxo-9a-aza-9a-homoerythromycin A. It is a related macrolide process and degradant impurity arising from structural modification of the 15-membered azalide framework rather than a classic mutagenic alert species. The compound, C37H70N2O12, MW 734.95 g/mol, differs from azithromycin by replacement and demethylation at the desosamine-linked nitrogen site. Characterization typically requires LC-MS/MS with high-resolution MS and, where needed, NMR comparison against reference spectra for positional assignment and impurity profiling in stability or synthesis studies.Request a Quote
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