Azithromycin Impurity 33

Name	9a-aza-9a-homo Erythromycin A (~)
Synonyms	Erythromycin A lactam Azithromycin Impurity 33 Azithromycin Impurity 40 9a-aza-9a-homo Erythromycin A 9a-aza-9a-homo Erythromycin A (~) (2R,3S,4R,5R,8R,10R,11R,12S,13S,14R)-13-[(2,6-Dideoxy-3-C-Methyl-3-O-Methyl-α-L-ribo-hexopyranosyl)oxy]-2-ethyl-3,4,10-trihydroxy-3,5,8,10,12,14-hexaMethyl-11-[[3,4,6-trideoxy-3-(diMethylaMino)-β-D-xylo-hexopyranosyl]oxy]-1-o (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-azacyclopentadecane-7,15-dione
CAS	76820-32-1

Molecular Formula	C37H68N2O13
Molar Mass	748.94142
Melting Point	>133°C (dec.)
Solubility	Chloroform (Slightly), DMSO (Slightly) Methanol (Slightly)
Appearance	Solid
Color	White to Off-White
Storage Condition	Hygroscopic, -20°C Freezer, Under Inert Atmosphere

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Azithromycin Impurity 33

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