Letrozole 2mg/mL 30mL
CAS Number: 112809-51-5
Molecular Weight: 285.310 g·mol
Class: selective estrogen receptor modulator (SERM)
Formula: C17H11N5
Letrozole is a non-steroidal type II aromatase inhibitor.5 It blocks the active site, and therefore the electron transfer chain of CYP19A1. This competitive inhibition prevents the conversion of androgens to estrogen.
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