PRODUCT NAME: Rosuvastatin Impurity 21
Date of Mfg: Sample COA	RETEST DATE: Sample COA

Catalogue Number	ROS-034
Lot Number	Sample COA
Batch Quantity	Sample COA
CAS Number	154026-92-3
Mol. Formula	C10H17ClO4
Molecular Wt	236.7 g/mol
Long Term Storage Condition	-20°C Freezer, Under inert atmosphere	Handling instruction	Sample COA
IUPAC	tert-butyl (S)-6-chloro-5-hydroxy-3-oxohexanoate
Chemical Name	Rosuvastatin Impurity 21
Synonyms

Test	Results
Appearance	Pale Yellow to Pale Brown
Identification by 1H NMR	Sample COA
Identification By IR	Sample COA
Mass (ESI)	Sample COA
Purity	NLT 97%
Wt. Loss by TGA	Sample COA
% Potency	Sample COA
Solubility	Chloroform (Slightly), Methanol (Slightly)
QC Release Date	Sample COA
Attachments	Sample COA
Note: This material can be used as a referance standard and is for research purpose ONLY and not for human consumption