PRODUCT NAME: Linagliptin Impurity 32
Date of Mfg: Sample COA	RETEST DATE: Sample COA

Catalogue Number	LIG-011
Item/Batch Number	Sample COA
Quantity	Sample COA
CAS Number	853029-57-9
Mol. Formula	C₂₀H₁₇BrN₆O₂
Molecular Wt	453.29
IUPAC	8-bromo-7-but-2-ynyl-3-methyl-1-[(4-methylquinazolin-2-yl)methyl]purine-2,6-dione
Synonyms	1-[(4-Methylquinazolin-2-yl)methyl]-3-methyl-7-(2-butyn-1-yl)-8-bromoxanthine
Long Term Storage Condition	Store under 2 to 8°C
Handling instruction	Sample COA

Test	Results
Appearance	White to Pale 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	DMSO (Slightly, Heated, Sonicated), Methanol (Very Slightly, Heated, Sonicated)
Purity	NLT 98% BY HPLC
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