PRODUCT NAME: Linagliptin Impurity 9
Date of Mfg: Sample COA	RETEST DATE: Sample COA

Catalogue Number	LIG-002
Item/Batch Number	Sample COA
Quantity	Sample COA
CAS Number	-
Mol. Formula	C27H33N9O2
Molecular Wt	515.62
Synonyms	(R)-7-(but-2-yn-1-yl)-8-(3-(2,2-dimethylhydrazinyl)piperidin-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-3,7-dihydro-1H-purine-2,6-dione
Long Term Storage Condition	-20°C Freezer
Handling instruction	Sample COA

Test	Results
Appearance	Light Yellow 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	DMSO (Slightly), Methanol (Slightly, Heated, Sonicated)
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