Also called as CSA (DL-10-Camphorsulfonic Acid) with chemical name: Bicyclo[2.2.1]heptane-1-methanesulfonic acid, 7,7-dimethyl-2-oxo-, (1S)- with alternate as number 3144-16-9. A resolving agent: In organic synthesis, CSA is used to separate chiral amines and other compounds into their individual enantiomers (mirror-image versions of a molecule). For many drugs, only one enantiomer provides the desired therapeutic effect, making this step critical for producing effective and safe medicines.