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

Catalogue Number	AML-033
Lot Number	Sample COA
Batch Quantity	Sample COA
CAS Number	79781-21-8
Mol. Formula	C18H20ClNO5
Molecular Wt	365.8 g/mol
Long Term Storage Condition	-20°C	Handling instruction	Sample COA
IUPAC	3-Ethyl 5-methyl 4-(2-chlorophenyl)-2-(hydroxymethyl)-6-methyl-1,4-dihydropyridine-3,5-dicarboxylate
Chemical Name	Amlodipine Impurity 21
Synonyms	3-Ethyl 5-methyl 4-(2-chlorophenyl)-2-(hydroxymethyl)-6-methyl-1,4-dihydropyridine-3,5-dicarboxylate

Test	Results
Appearance	white to off-white or pale yellow
Identification by 1H NMR	Sample COA
Identification By IR	Sample COA
Mass (ESI)	Sample COA
Purity	NLT 98%
Wt. Loss by TGA	Sample COA
% Potency	Sample COA
Solubility
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