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

Catalogue Number	LIG-009
Lot Number	Sample COA
Batch Quantity	Sample COA
CAS Number	NA
Mol. Formula	C27H30N8O3
Molecular Wt	514.6
Long Term Storage Condition	Storage at 2-8°C.	Handling instruction	Sample COA
Chemical Name	Linagliptin Impurity IV
Synonyms	(R)-N-(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)acetamide

Test	Results
Appearance	White 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	ACN:H2O(8:2)
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