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

Catalogue Number	LIG-007
Item/Batch Number	Sample COA
Quantity	Sample COA
CAS Number	1955514-80-3
Mol. Formula	C₂₆H₂₉N₉O₃
Molecular Wt	515.57
Synonyms	1-((1R)-3-(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)cyclohexyl)urea; Linagliptin N-Aminocarbonyl Impurity;
Long Term Storage Condition	-20°C Freezer, Under inert atmosphere
Handling instruction	Sample COA

Test	Results
Appearance	Pale Yellow to Pale Beige 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