Buy CAS 141942-85-0 99% Purity

Ethyl (R)-4-cyano-3-hydroxybutyrate​ CAS 141942-85-0 is a chiral, bifunctional building block of significant importance in asymmetric synthesis. It contains a stereogenic center with (R)-configuration, an ethyl ester group, and a terminal nitrile group, making it a versatile precursor for constructing complex chiral molecules, particularly in pharmaceutical applications. This compound is a ​stereodefined, multifunctional chiral building block​ where the (R)-configured alcohol and versatile cyano group provide unique synthetic leverage. It serves as a ​privileged precursor for high-value pharmaceutical intermediates, particularly statin side chains, by offering superior and orthogonal reactivity compared to its chloro analog. ​