Molecular Formula: C₁₇H₁₁N₅
Synonyms: 4,4-(1H-1,2,4-Triazol-1-ylmethylene)dibenzonitrile; 4,4'-(1H-1,2,4-Triazol-1-ylmethylene)bisbenzonitrile; Benzonitrile,4,4'-(1H-1,2,4-triazol-1-ylmethylene) bis-; Benzonitrile, 4,4-(1H-1,2,4-triazol-1-ylmethylene)bis-; Femara (TN); Femara; Letrozole [USAN:INN]; 4,4'-(1H-1,2,4-triazol-1-ylmethylene) bis-Benzonitrile; Letrozole & int; CGS 20267; CGS-20267; Lelrozol; 4-[1-(1,2,4-Triazolyl)-methyl]-Benzonitrile; 4-[(4-cyanophenyl)-(1,2,4-triazol-1-yl)methyl]benzonitrile;
Appearance: white to off-whitecrystalline powder
Molecular Weight: 285.31
Density: 1.21g/cm3 Boiling Point: 374.4 °C at 760 mmHg
Melting Point: 181-183℃
Flash Point: 180.3 °C
Storage Temperature: Store in original container in a cool dark place.
Solubility: Insoluble
Usage: A nonsteroidal aromatase inhibitor structurally related to Fadrozole. Antineoplastic