PRODUCT NAME: Alfacalcidol Impurity 18
Date of Mfg: Sample COA	RETEST DATE: Sample COA

Catalogue Number	ALF-017
Item/Batch Number	Sample COA
Quantity	Sample COA
CAS Number	87649-61-4
Mol. Formula	C33H58O2Si
Molecular Wt	514.9 g/mol
IUPAC	(1R,5R,E)-5-((Tert-butyldimethylsilyl)oxy)-3-(2-((1R,3aS,7aR,E)-7a-methyl-1-((R)-6-methylheptan-2-yl)octahydro-4H-inden-4-ylidene)ethylidene)-2-methyl
Synonyms	(1R,5R,E)-5-((Tert-butyldimethylsilyl)oxy)-3-(2-((1R,3aS,7aR,E)-7a-methyl-1-((R)-6-methylheptan-2-yl)octahydro-4H-inden-4-ylidene)ethylidene)-2-methylenecyclohexan-1-ol
Long Term Storage Condition	Store at -20 °C or below
Handling instruction	Sample COA

Test	Results
Appearance	colorless to pale yellow, viscous oil
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