In this series:SteroidsOral steroidsTopical steroidsFingertip units for topical steroidsSteroid nasal sprays The letters α and β[18] denote absolute stereochemistry at chiral centers—a specific nomenclature distinct from the R/S convention[19] of organic chemistry to denote absolute configuration of functional groups, known bey Cahn–Ingold–Prelog priority rules. The R/S convention ass... https://search.grainger.illinois.edu/searchaidlog3/sourcelognew.asp?ID=782151&goog--https://tr.wikipedia.org/wiki/Vitamin