(Rac)-Upacicalcet is a racemate of Upacicalcet, which serves as an intravenous calcimimetic agent. Upacicalcet acts by directly targeting calcium-sensing receptors on parathyroid cell membranes, effectively suppressing the release of excessive parathyroid hormone (PTH) and reducing blood PTH levels. This compound holds the potential for researching secondary hyperparathyroidism (SHPT) [1].