PRODUCT NAME: Alogliptin Impurity 55
Date of Mfg: Sample COA	RETEST DATE: Sample COA

Catalogue Number	ALP-078
Lot Number	Sample COA
Batch Quantity	Sample COA
CAS Number	607376-86-3
Mol. Formula	C12H25NO8S2
Molecular Wt	375.5 g/mol
Long Term Storage Condition	2-8°C Refrigerator	Handling instruction	Sample COA
IUPAC	(S)-2-((Tert-butoxycarbonyl)amino)pentane-1,5-diyl dimethanesulfonate
Chemical Name	Alogliptin Impurity 55
Synonyms	(-)-(2S)-2-[(tert-Butoxycarbonyl)amino]-5-[(methylsulfonyl)oxy]pentyl Methanesulfonate; Linagliptin - In house impurity

Test	Results
Appearance	white to off-white crystalline solid
Identification by 1H NMR	Sample COA
Identification By IR	Sample COA
Mass (ESI)	Sample COA
Purity	NLT 98%
Wt. Loss by TGA	Sample COA
% Potency	Sample COA
Solubility
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