PRODUCT NAME: (S)-Linagliptin
Date of Mfg: Sample COA	RETEST DATE: Sample COA

Catalogue Number	LIG-008
Item/Batch Number	Sample COA
Quantity	Sample COA
CAS Number	668270-11-9
Mol. Formula	C₂₅H₂₈N₈O₂
Molecular Wt	472.54
IUPAC	8-[(3S)-3-aminopiperidin-1-yl]-7-but-2-ynyl-3-methyl-1-[(4-methylquinazolin-2-yl)methyl]purine-2,6-dione
Synonyms	8-[(3S)-3-Amino-1-piperidinyl]-7-(2-butyn-1-yl)-3,7-dihydro-3-methyl-1-[(4-methyl-2-quinazolinyl)methyl]-1H-purine-2,6-dione
Long Term Storage Condition	Refrigerator
Handling instruction	Sample COA

Test	Results
Appearance	Light Yellow to Dark 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	Chloroform (Slightly), DMSO (Slightly), Methanol (Slightly)
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