Letrozole-d4

• CAT Number: R068121
• CAS Number: 1133712-96-5
• Molecular Formula: C17H7D4N5
• Molecular Weight: 289.33
• Purity: ≥95%
• Storage: RT
• IUPAC Name: 4-[(4-cyanophenyl)-(1,2,4-triazol-1-yl)methyl]-2,3,5,6-tetradeuteriobenzonitrile
• InChI: InChI=1S/C17H11N5/c18-9-13-1-5-15(6-2-13)17(22-12-20-11-21-22)16-7-3-14(10-19)4-8-16/h1-8,11-12,17H/i1D,2D,5D,6D
• InChIKey: HPJKCIUCZWXJDR-NMRLXUNGSA-N
• SMILES: C1=CC(=CC=C1C#N)C(C2=CC=C(C=C2)C#N)N3C=NC=N3

Letrozole-d4（Cat No.:R068121） is a deuterated analog of letrozole, crucial for the study of its pharmacokinetics and metabolic pathways. With four deuterium atoms, this variant provides enhanced analytical accuracy in detecting and quantifying letrozole in biological matrices. It is widely used in research to understand the drug’s efficacy and safety profile in hormone-related cancer therapies, particularly breast cancer. The precise isotopic labeling of Letrozole-d4 ensures reliable results in mass spectrometry and NMR spectroscopy, making it an essential tool for pharmaceutical research and development focused on improving cancer treatment outcomes.