"NCIA selective cytochemical monocyte marker for alpha-naphthyl butyrate at pH 6.1. Alpha-naphthyl butyrate covers the external surface of the plasma membrane in monocytes and membrane-bounded intracellular organelles in lymphocytes." . . . "C1321545"^^ . "Alpha-naphthyl Butyrate EsterasePTNCI" . "Amino Acid, Peptide, or Protein"^^ . "Enzyme"^^ . "Alpha-naphthyl Butyrate Esterase"^^ . "C89857"^^ . "Alpha-naphthyl Butyrate Esterase"^^ . "Indicator, Reagent, or Diagnostic Aid"^^ .