Abuur nooc ka sii adag weedhan Farmashiiste Iswiidhish ah iyo kiimiko-yaqaanka dabiiciga ah oo xiise gaar ah u leh kiimikada stereochemistry.
Dabcan, nooca jumlada ee adag ayaa ah "Farmashiye Iswiidhish ah iyo kiimiko dabiici ah oo leh xiisaha dhinaca ee cilmiga dhulka - gaar ahaan macdanta, taariikhda (taariikhda sayniska, taariikhda tikniyoolajiyadda, taariikhda macdanta iwm.)".