Anastrozole EP Impurity I with CAS No: 120511-91-3 is an impurity standard of Anastrozole.
Chemically, it is a nonsteroidal aromatase inhibitor. Anastrozole works by inhibiting the enzyme aromatase, which is responsible for converting androgens into estrogen. By reducing estrogen levels, it helps slow down or halt the growth of hormone-sensitive breast cancer cells. Anastrozole is typically taken orally. Its use is often part of adjuvant therapy following surgery or other treatments for breast cancer.
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