Reaction catalyzed by carboxylesterase (3.1.1.1), arylesterase (3.1.1.2), triacylglycerol lipase (3.1.1.3), acetylesterase (3.1.1.6), methylumbelliferyl-acetate deacetylase (3.1.1.56), feruloyl esterase (3.1.1.73)

		+		H2O	=			+
	1-naphthyl butyrate	+		H2O	=		1-naphthol	+		butyrate