PRODUCT NAME: Linagliptin Impurity 7
Date of Mfg: Sample COA	RETEST DATE: Sample COA

Catalogue Number	LIG-014
Item/Batch Number	Sample COA
Quantity	Sample COA
CAS Number	2416949-69-2
Mol. Formula	C25H29N7O4
Molecular Wt	491.6
IUPAC	1H-Purine-1-acetamide, N-(2-acetylphenyl)-8-[(3R)-3-amino-1-piperidinyl]-7-(2-butyn-1-yl)-2,3,6,7-tetrahydro-3-methyl-2,6-dioxo-;
Synonyms	(R)-N-(2-acetylphenyl)-2-(8-(3-aminopiperidin-1-yl)-7-(but-2-yn-1-yl)-3-methyl-2,6-dioxo-2,3,6,7-tetrahydro-1H-purin-1-yl)acetamide
Long Term Storage Condition	2-8 °C for long term storage
Handling instruction	Sample COA

Test	Results
Appearance	Light Brown 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	ACN:H2O (8:2)
Purity	95%+
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