PRODUCT NAME: N-Boc Linagliptin
Date of Mfg: Sample COA	RETEST DATE: Sample COA

Catalogue Number	LIG-012
Lot Number	Sample COA
Batch Quantity	Sample COA
CAS Number	668273-75-4
Mol. Formula	C₃₀H₃₆N₈O₄
Molecular Wt	572.66
Long Term Storage Condition	2-8°C Refrigerator	Handling instruction	Sample COA
IUPAC	tert-butyl N-[(3R)-1-[7-but-2-ynyl-3-methyl-1-[(4-methylquinazolin-2-yl)methyl]-2,6-dioxopurin-8-yl]piperidin-3-yl]carbamate
Chemical Name	N-Boc Linagliptin
Synonyms	Linagliptin Related Compound B, N-[(3R)-1-[7-(2-butyn-1-yl)-2,3,6,7-tetrahydro-3-methyl-1-[(4-methyl-2-quinazolinyl)methyl]-2,6-dioxo-1H-purin-8-yl]-3-piperidinyl]-carbamic Acid 1,1-Dimethylethyl Ester

Test	Results
Appearance	Off-White to Pale Beige Solid
Identification by 1H NMR	Sample COA
Identification By IR	Sample COA
Mass (ESI)	Sample COA
Purity	97% BY HPLC
Wt. Loss by TGA	Sample COA
% Potency	Sample COA
Solubility	Chloroform (Slightly), DMSO (Slightly), Methanol (Slightly)
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