The chemical Chromanol 293B has a designated molecular formula of C15H20N2O4S and a molecular weight of 324.395 g/mol. Synonyms may include: 6-Cyano-4-(N-ethylsulfonyl-N-methylamino)-3-hydroxy-2,2-dimethylchromane, 293B Cpd, Chromanol 293B (ChemID). Chromanol 293B has been assigned a MeSH pharmacological action of: Potassium Channel Blockers.