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

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

Test	Results
Appearance	white to off-white crystalline 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
Purity	NLT 98%
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