PRODUCT NAME: Afatinib Impurity 25
Date of Mfg: Sample COA	RETEST DATE: Sample COA

Catalogue Number	AFI-006
Item/Batch Number	Sample COA
Quantity	Sample COA
CAS Number	212776-19-7
Mol. Formula	C7H13NO2
Molecular Wt	143.2 g/mol
IUPAC	Methyl (E)-4-(dimethylamino)but-2-enoate
Synonyms	Methyl (E)-4-(dimethylamino)but-2-enoate; (E)-4-(Dimethylamino)but-2-enoic Acid Methyl Ester; (E)-4-(Dimethylamino)-2-butenoic Acid Methyl Ester
Long Term Storage Condition	2-8°C Refrigerator
Handling instruction	Sample COA

Test	Results
Appearance	Orange Oil
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