PRODUCT NAME: Linagliptin Impurity IX (N-Aminoacyl Linagliptin)
Date of Mfg: Sample COA	RETEST DATE: Sample COA

Catalogue Number	LIG-006
Item/Batch Number	Sample COA
Quantity	Sample COA
CAS Number	-
Mol. Formula	C26H29N9O3
Molecular Wt	515.58
Synonyms	1-(1-(7-(but-2-yn-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-8-yl)piperidin-3-yl)urea
Long Term Storage Condition	-20°C Freezer
Handling instruction	Sample COA

Test	Results
Appearance	No Data Available
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	DMSO (Slightly), Methanol (Slightly)
Purity	NLT 98%
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