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

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

Test	Results
Appearance	Off-White to Pale Yellow 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	Chloroform (Slightly, Heated), Methanol (Slightly)
Purity	NLT 95 % by 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