Anastrozole 1, 3 Dibromomethyl Impurity(CAS No: 19294-04-3) or 1,3-Bis(bromomethyl)-5-methylbenzene, it is a third-generation aromatase inhibitor anastrozole that is used in the treat breast cancer in women after menopause.
References
Cuzick, Jack, et al. “Anastrozole for Prevention of Breast Cancer in High-Risk Postmenopausal Women (IBIS-II): An International, Double-Blind, Randomised Placebo-Controlled Trial.†Lancet (London, England), vol. 383, no. 9922, 2014, pp. 1041–8, www.ncbi.nlm.nih.gov/pubmed/24333009, 10.1016/S0140-6736(13)62292-8. Accessed 21 Nov. 2019.
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