PRODUCT NAME: (R)-b-(Boc-amino)-2,5-difluorobenzenebutanoic Acid
Date of Mfg: Sample COA	RETEST DATE: Sample COA

Catalogue Number	SIT-008
Lot Number	Sample COA
Batch Quantity	Sample COA
CAS Number	486459-98-7
Mol. Formula	C₁₅H₁₉F₂NO₄
Molecular Wt	315.31
Long Term Storage Condition	2-8°C Refrigerator	Handling instruction	Sample COA
Chemical Name	(R)-b-(Boc-amino)-2,5-difluorobenzenebutanoic Acid
Synonyms	(R)-Sitagliptin Defluoro Impurity 4; Butanoic Acid, (R)-3-((tert-butoxycarbonyl)amino)-4-(2,5-difluorophenyl)

Test	Results
Appearance	Pale White 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	No Data Available
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