PRODUCT NAME: Mesalazine EP Impurity O
Date of Mfg: Sample COA	RETEST DATE: Sample COA

Catalogue Number	MES-016
Item/Batch Number	Sample COA
Quantity	Sample COA
CAS Number	121-57-3
Mol. Formula	C6H7NO3S
Molecular Wt	173.2
IUPAC	4-aminobenzenesulfonic acid
Synonyms	4-Aminobenzenesulfonic acid;Sulfamethoxazole Imp. D (EP), Sulfanilic Acid,Mesalazine Imp. O (EP), Sulfadiazine Imp. B (EP), Sulfadimidine Imp. F;1-Aminobenzene-4-sulfonic Acid; p-Sulfoaniline
Long Term Storage Condition	2-8°C Refrigerator
Handling instruction	Sample COA

Test	Results
Appearance	White to Almost white powder to crystal
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	almost transparency
Purity	NLT 99.0%(T)(HPLC)
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