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

Catalogue Number	ALF-008
Item/Batch Number	Sample COA
Quantity	Sample COA
CAS Number	112670-85-6
Mol. Formula	C39H72O2Si2
Molecular Wt	629.2 g/mol
IUPAC	(((1R,3S,E)-5-(2-((1R,3aS,7aR,E)-7a-Methyl-1-((R)-6-methylheptan-2-yl)octahydro-4H-inden-4-ylidene)ethylidene)-4-methylenecyclohexane-1,3-diyl)bis(oxy
Synonyms	(((1R,3S,E)-5-(2-((1R,3aS,7aR,E)-7a-Methyl-1-((R)-6-methylheptan-2-yl)octahydro-4H-inden-4-ylidene)ethylidene)-4-methylenecyclohexane-1,3-diyl)bis(oxy))bis(tert-butyldimethylsilane)
Long Term Storage Condition	-20°C or lower
Handling instruction	Sample COA

Test	Results
Appearance	white to 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
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