PRODUCT NAME: Vilanterol Impurity 4
Date of Mfg: Sample COA	RETEST DATE: Sample COA

Catalogue Number	VIN-006
Item/Batch Number	Sample COA
Quantity	Sample COA
CAS Number	452339-73-0
Mol. Formula	C13H15NO4
Molecular Wt	249.3 g/mol
IUPAC	(R)-5-(2,2-Dimethyl-4H-benzo[d][1,3]dioxin-6-yl)oxazolidin-2-one
Synonyms	Dimethyl Benzodioxin Oxazolidinone
Long Term Storage Condition	2°C to 8°C
Handling instruction	Sample COA

Test	Results
Appearance	White 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	Slightly soluble In Methanol
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