"Etifenin"^^ . "C2825438"^^ . "63245-28-3"^^ . . "EtifeninPTNCI" . "Etifenin"^^ . "C16H22N2O5"^^ . "Etifenin"^^ . "ETIFENINPTFDAMH922908EB" . . "Organic Chemical"^^ . "Indicator, Reagent, or Diagnostic Aid"^^ . "FDA"^^ . "MH922908EB"^^ . "C81067"^^ . .