European Pharmacopoeia (EP) Reference Standard Synonym(s): D-Panthenol; ( R )-(+)-2,4-Dihydroxy-N-(3-hydroxypropyl)-3,3-dimethylbutyramide; ( R )-2,4-Dihydroxy-3,3-dimethylbutyric 3-hydroxypropylamide; D-Pantothenyl alcohol; Dexpanthenol; Provitamin B Empirical Formula:...