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

Catalogue Number	ZAF-011
Item/Batch Number	Sample COA
Quantity	Sample COA
CAS Number	107754-19-8
Mol. Formula	C25H28N2O5
Molecular Wt	436.5 g/mol
IUPAC	4-[[5-[[(Cyclopentyloxy)carbonyl]amino]-1-methyl-1H-indol-3-yl]methyl]-3-methoxy-benzoic Acid Methyl Ester
Synonyms	Benzoic acid, 4-((5-(((cyclopentyloxy)carbonyl)amino)-1-methyl-1H-indol-3-yl)methyl)-3-methoxy-, methyl ester; methyl 4-[[5-(cyclopentyloxycarbonylamino)-1-methylindol-3-yl]methyl]-3-methoxybenzoate "
Long Term Storage Condition	2°C to 8°C
Handling instruction	Sample COA

Test	Results
Appearance	White/Off-White Crystalline Powder
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 water
Purity	NLT 95%
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