PRODUCT NAME: Metformin EP Impurity B
Date of Mfg: Sample COA	RETEST DATE: Sample COA

Catalogue Number	MEF-009
Lot Number	Sample COA
Batch Quantity	Sample COA
CAS Number	4405-08-7
Alternate CAS Number	2959-04-8 (HCl salt)
Mol. Formula	C4H8N8
Molecular Wt	168.16
Long Term Storage Condition	Store at 2-8°C	Handling instruction	Sample COA
IUPAC	2-(4,6-diamino-1,3,5-triazin-2-yl)guanidine
Chemical Name	Metformin EP Impurity B
Synonyms	Guanylmelamine; Monoguanylmelamine; N-(4-Amino-3,6-dihydro-6-imino-1,3,5-triazin-2-yl)-guanidine; (4,6-Diamino-s-triazin-2-yl)-guanidine;(Aminoiminomethyl)-1,3,5-triazine-2,4,6-triamine

Test	Results
Appearance	White color solid
Identification by 1H NMR	Sample COA
Identification By IR	Sample COA
Mass (ESI)	Sample COA
Purity	99.22% by HPLC
Wt. Loss by TGA	Sample COA
% Potency	Sample COA
Solubility	DMSO (Slightly, Heated), Water (Slightly)
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