PRODUCT NAME: Linagliptin Related Compound C
Date of Mfg: Sample COA	RETEST DATE: Sample COA

Catalogue Number	LIG-016
Item/Batch Number	Sample COA
Quantity	Sample COA
CAS Number	NA
Mol. Formula	C26H32N8O3
Molecular Wt	504.6 g/mol
IUPAC	(R,Z)-8-(3-aminopiperidin-1-yl)-7-(4-hydroxy-3-methylbut-2-en-1-yl)-3-methyl-1-((4-methylquinazolin-2-yl)methyl)-3,7-dihydro-1H-purine-2,6-dione
Synonyms	Linagliptin Impurity 97; N-formyl Linagliptin
Long Term Storage Condition	2-8°C Refrigerator
Handling instruction	Sample COA

Test	Results
Appearance	white powder
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
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