PRODUCT NAME: Remdesivir Impurity B
Date of Mfg: Sample COA	RETEST DATE: Sample COA

Catalogue Number	REM-003
Item/Batch Number	Sample COA
Quantity	Sample COA
CAS Number	1191237-80-5
Mol. Formula	C15H17N5O4
Molecular Wt	331.33
Synonyms	Remdesivir O-Desphosphate Acetonide Impurity; (3aR,4R,6R,6aR)-4-(4-aminopyrrolo[2,1-f][1,2,4]triazin-7-yl)-6-(hydroxymethyl)-2,2-dimethyltetrahydrofuro[3,4-d][1,3]dioxole-4-carbonitrile
Long Term Storage Condition	Storage at 2-8°C
Handling instruction	Sample COA

Test	Results
Appearance	Off 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	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