PRODUCT NAME: Apremilast Impurity 28
Date of Mfg: Sample COA	RETEST DATE: Sample COA

Catalogue Number	APL-006
Lot Number	Sample COA
Batch Quantity	Sample COA
CAS Number	1131-52-8
Mol. Formula	C10H12O3
Molecular Wt	180.2 g/mol
Long Term Storage Condition		Handling instruction	Sample COA
IUPAC	3-Ethoxy-4-methoxybenzaldehyde
Chemical Name	Apremilast Impurity 28
Synonyms	4-Methoxy-3-ethoxybenzaldehyde; O-Ethylisovanillin; Isovanillin Ethyl Ether; 3-Ethoxy-4-methoxybenzaldehyde (As per USP Commenting Opening 51(2))

Test	Results
Appearance	Colorless to pale yellow crystalline solid or liquid (depending on purity and temperature)
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