(Rac)-Vorozole ((Rac)-R83842) is a racemate of Vorozole. Vorozole (HY-19599) is a potent and selective, orally active non-steroidal aromatase inhibitor[1].
References
[1] W Wouters, et al. Comparative effects of the aromatase inhibitor R76713 and of its enantiomers R83839 and R83842 on steroid biosynthesis in vitro and in vivo. J Steroid Biochem Mol Biol. 1990 Dec 20;37(6):1049-54. DOI:10.1016/0960-0760(90)90464-v