PRODUCT NAME: Levothyroxine Impurity 14
Date of Mfg: Sample COA	RETEST DATE: Sample COA

Catalogue Number	LEX-011
Item/Batch Number	Sample COA
Quantity	Sample COA
CAS Number	2088032-62-4
Mol. Formula	C30H21I7N2O8
Molecular Wt	1425.8 g/mol
IUPAC	(2S)-2-amino-3-[4-[3-[4-[4-[(2S)-2-amino-2-carboxyethyl]-2,6-diiodophenoxy]-2,6-diiodophenoxy]-4-hydroxy-5-iodophenoxy]-3,5-diiodophenyl]propanoic aci
Synonyms	Levothyroxine Dimer
Long Term Storage Condition	2-8°C Refrigerator
Handling instruction	Sample COA

Test	Results
Appearance	White Solid
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 95%
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