PRODUCT NAME: Desmopressin EP Impurity B
Date of Mfg: Sample COA	RETEST DATE: Sample COA

Catalogue Number	DOS-001
Lot Number	Sample COA
Batch Quantity	Sample COA
CAS Number	NA
Mol. Formula	C46H63N13O13S2
Molecular Wt	1070.2 g/mol
Long Term Storage Condition	2-8°C Refrigerator	Handling instruction	Sample COA
IUPAC	3-((4R,7S,10S,13S,16S)-7-(2-amino-2-oxoethyl)-4-((S)-2-(((R)-1-((2-amino-2-oxoethyl)amino)-5-guanidino-1-oxopentan-2-yl)carbamoyl)pyrrolidine-1-carbon
Chemical Name	Desmopressin EP Impurity B
Synonyms	Glu(4)-Desmopressin; [4-l-glutamic acid]desmopressin

Test	Results
Appearance	solid
Identification by 1H NMR	Sample COA
Identification By IR	Sample COA
Mass (ESI)	Sample COA
Purity	NLT 98%
Wt. Loss by TGA	Sample COA
% Potency	Sample COA
Solubility
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