Letrozole-d4 (CGS 20267-d4) is a deuterium-labeled version of Letrozole. Letrozole (CGS 20267) is described as a potent, selective, reversible, and orally active non-steroidal inhibitor of aromatase, with an IC50 of 11.5 nM. It selectively inhibits estrogen biosynthesis and is used in breast cancer research.
- Deuterium labeled compound.
- Potent, selective, reversible, and orally active non-steroidal aromatase inhibitor.
- IC50 of 11.5 nM against aromatase.
- Selectively inhibits estrogen biosynthesis.
- Useful for breast cancer research.
- Can be used as a tracer.
- Can be used as an internal standard for quantitative analysis by NMR, GC-MS, or LC-MS.