4-methylumbelliferone + acetate + H(+) => 4-methylumbelliferyl acetate + H2O
4-methylumbelliferone + acetate + h(+) => 4-methylumbelliferyl acetate + h2o
4-methylumbelliferone + acetate + H(+) => 4-methylumbelliferyl acetate + H2O
4-methylumbelliferone + acetate + h(+) => 4-methylumbelliferyl acetate + h2o