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

Catalogue Number	LIG-015
Lot Number	Sample COA
Batch Quantity	Sample COA
CAS Number	3031851-92-7
Mol. Formula	C10H19N3O3
Molecular Wt	229.28
Long Term Storage Condition	2-8 °C for long term storage	Handling instruction	Sample COA
IUPAC	Tert-butyl (R)-(1-nitrosopiperidin-3-yl)carbamate
Chemical Name	N-Nitroso Linagliptin Impurity
Synonyms	Tert-butyl (R)-(1-nitrosopiperidin-3-yl)carbamate

Test	Results
Appearance	White to Off-White Solid
Identification by 1H NMR	Sample COA
Identification By IR	Sample COA
Mass (ESI)	Sample COA
Purity	95%+
Wt. Loss by TGA	Sample COA
% Potency	Sample COA
Solubility	Chloroform (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