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

Catalogue Number	LET-003
Lot Number	Sample COA
Batch Quantity	Sample COA
CAS Number	112809-52-6
Mol. Formula	C17H11N5
Molecular Wt	285.3
Long Term Storage Condition	4°C	Handling instruction	Sample COA
IUPAC	4-[(4-cyanophenyl)-(1,2,4-triazol-4-yl)methyl]benzonitrile
Chemical Name	Letrozole EP Impurity A
Synonyms	4,4'-(4H-1,2,4-Triazol-4-ylmethylene)bisbenzonitrile; USP Letrozole Related Compound A; Letrozole EP Impurity A

Test	Results
Appearance	Off-White to Pale Yellow Solid
Identification by 1H NMR	Sample COA
Identification By IR	Sample COA
Mass (ESI)	Sample COA
Purity	NLT 95 % by HPLC
Wt. Loss by TGA	Sample COA
% Potency	Sample COA
Solubility	Chloroform (Slightly, Heated), Methanol (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