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

Catalogue Number	MEF-002
Lot Number	Sample COA
Batch Quantity	Sample COA
CAS Number	461-58-5
Mol. Formula	C₂H₄N₄
Molecular Wt	84.08
Long Term Storage Condition	Refrigerator	Handling instruction	Sample COA
Chemical Name	Metformin EP Impurity A
Synonyms	N-Cyanoguanidine; 1-Cyanoguanidine; 2-Cyanoguanidine; CGNA; Dicyandiamide; Dicyanodiamide; Didin; Epicure DICY; Metformin Related Compound A USP; Metformin EP Impurity A; Metformin USP Related Compound A1 - Cyanoguanidine

Test	Results
Appearance	White to Off-White Solid
Identification by 1H NMR	Sample COA
Identification By IR	Sample COA
Mass (ESI)	Sample COA
Purity	NLT 98%
Wt. Loss by TGA	Sample COA
% Potency	Sample COA
Solubility	DMSO (Slightly), Methanol (Slightly, Sonicated)
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