YCT529 is a potent, selective and orally active RAR-α inhibitor In Vivo When given orally to male mice for 4 weeks, YCT529 dramatically reduces sperm counts and is 99% effective in preventing pregnancy, without any observable side effects. The mice could father pups again 4-6 weeks after they stopped receiving the compound . MCE has not independently confirmed the accuracy of these methods. They are for reference only. Form:Solid IC50& Target:RAR-α