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

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

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