PRODUCT NAME: Clindamycin EP Impurity C
Date of Mfg: Sample COA	RETEST DATE: Sample COA

Catalogue Number	CLN-008
Item/Batch Number	Sample COA
Quantity	Sample COA
CAS Number	16684-06-3
Mol. Formula	C₁₈H₃₃ClN₂O₅S
Molecular Wt	424.98
IUPAC	(2S,4R)-N-[(1S,2R)-2-chloro-1-[(2R,3R,4S,5R,6R)-3,4,5-trihydroxy-6-methylsulfanyloxan-2-yl]propyl]-1-methyl-4-propylpyrrolidine-2-carboxamide
Synonyms	Clindamycin HCl EP Impurity C;7-Epi Clindamycin; Methyl 7-Chloro-6,7,8-trideoxy-6-[[[(2S,4R)-1-methyl-4-propyl-2-pyrrolidinyl]carbonyl]amino]-1-thio-D-erythro-α-D-galacto-octopyranoside; (2S-trans)-Methyl 7-Chloro-6,7,8-trideoxy-6-[[(1-methyl-4-propyl-2-pyrrolidinyl)carbonyl]amino]-1-thio-D-erythro-α-D-galacto-octopyranoside; trans-α-Methyl 7-Chloro-6,7,8-trideoxy-6-(1-methyl-4-propyl-L-2-pyrrolidinecarboxamido)-1-thio-D-erythro-D-galacto-octopyranoside;
Long Term Storage Condition	2-8°C Refrigerator
Handling instruction	Sample COA

Test	Results
Appearance	White to Off-White Solid
Water content by KF/TGA	Sample COA
% Potency = [100 - (Water content by KF)] X HPLC Purity)] / 100	Sample COA
Identification by HNMR	Sample COA
Identification By IR	Sample COA
Mass (ESI)	Sample COA
Solubility	Chloroform (Slightly), Methanol (Slightly), Water (Slightly, Heated)
Purity	NLT 95% BY HPLC
Analysis Date (Release Date)	Sample COA
Attachments	Sample COA
Other Information	Sample COA
Note: This material can be used as a referance standard and is for research purpose ONLY and not for human consumption