PRODUCT NAME: Azithromycin EP Impurity O
Date of Mfg: Sample COA	RETEST DATE: Sample COA

Catalogue Number	AZT-006
Lot Number	Sample COA
Batch Quantity	Sample COA
CAS Number	763924-54-5
Mol. Formula	C39H74N2O12
Molecular Wt	763.01
Long Term Storage Condition	2-8°C Refrigerator	Handling instruction	Sample COA
IUPAC	(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,4
Chemical Name	Azithromycin EP Impurity O
Synonyms	1-Oxa-6-azacyclopentadecan-15-one,13-[(2,6-dideoxy-3-C-methyl-3-O-methyl-alpha-L-ribo-hexopyranosyl)oxy]-3,4,10-trihydroxy-3,5,6,8,10,12,14-heptamethyl-2-propyl-11-[[3,4,6-trideoxy-3-(dimethylamino)-beta-D-xylo-hexopyranosyl]oxy]-,(2R,3S,4R,5R,8R,10R,11R,12S,13S,14R);(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-propyl-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

Test	Results
Appearance	white to off-white powder
Identification by 1H NMR	Sample COA
Identification By IR	Sample COA
Mass (ESI)	Sample COA
Purity	NLT 95 %
Wt. Loss by TGA	Sample COA
% Potency	Sample COA
Solubility	methanol and dimethyl sulfoxide
QC Release Date	Sample COA
Attachments	Sample COA
Note: This material can be used as a referance standard and is for research purpose ONLY and not for human consumption