PRODUCT NAME: Ledipasvir Nitroso Impurity 1
Date of Mfg: Sample COA	RETEST DATE: Sample COA

Catalogue Number	NIO-542
Item/Batch Number	Sample COA
Quantity	Sample COA
CAS Number	NA
Mol. Formula	C49H53F2N9O7
Molecular Wt	918.0
Synonyms	Methyl ((S)-1-((S)-6-(5-(9,9-difluoro-7-(2-((1R,3S,4S)-2-((methoxycarbonyl)-L-valyl)-2-azabicyclo[2.2.1]heptan-3-yl)-1-nitroso-1H-benzo[d]imidazol-6-yl)-9H-fluoren-2-yl)-1H-imidazol-2-yl)-5-azaspiro[2.4]heptan-5-yl)-3-methyl-1-oxobutan-2-yl)carbamate
Long Term Storage Condition	Keep container tightly closed in a dry and well-ventilated place
Handling instruction	Sample COA

Test	Results
Appearance
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