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

Catalogue Number	LIG-011
Lot Number	Sample COA
Batch Quantity	Sample COA
CAS Number	853029-57-9
Mol. Formula	C₂₀H₁₇BrN₆O₂
Molecular Wt	453.29
Long Term Storage Condition	Store under 2 to 8°C	Handling instruction	Sample COA
IUPAC	8-bromo-7-but-2-ynyl-3-methyl-1-[(4-methylquinazolin-2-yl)methyl]purine-2,6-dione
Chemical Name	Linagliptin Impurity 32
Synonyms	1-[(4-Methylquinazolin-2-yl)methyl]-3-methyl-7-(2-butyn-1-yl)-8-bromoxanthine

Test	Results
Appearance	White to Pale Yellow Solid
Identification by 1H NMR	Sample COA
Identification By IR	Sample COA
Mass (ESI)	Sample COA
Purity	NLT 98% BY HPLC
Wt. Loss by TGA	Sample COA
% Potency	Sample COA
Solubility	DMSO (Slightly, Heated, Sonicated), Methanol (Very Slightly, Heated, Sonicated)
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