dextroenantiomer

A dextroenantiomer is one of two stereoisomers of a chiral molecule that rotate plane-polarized light in a clockwise direction. This specific direction of rotation is denoted by the prefix "d-" or "+". Its mirror image is the levoenantiomer, which rotates plane-polarized light in a counter-clockwise direction, denoted by "l-" or "-". Together, a dextroenantiomer and its corresponding levoenantiomer form an enantiomeric pair. Enantiomers have identical physical properties such as melting point, boiling point, and solubility, with the notable exception of their interaction with other chiral substances and plane-polarized light. The configuration of a chiral center is described using the Cahn-Ingold-Prelog priority rules, which assigns R or S descriptors. While the R/S designation refers to the absolute spatial arrangement of atoms, the d/l or +/- designation refers to the observed optical activity. It is important to note that there is no direct correlation between the R/S configuration and the d/l optical rotation; a molecule with R configuration can be a dextroenantiomer or a levoenantiomer, and vice versa. In biological systems, enantiomers can exhibit significantly different pharmacological or physiological effects because biological receptors are often chiral and interact differently with each stereoisomer.