3-Nitrophenyl tosylate 3899-90-9 4-11-00-00272 (Beilstein Handbook Reference) AI3-03741 BRN 2663852 Benzenesulfonic acid, 4-methyl-, 3-nitrophenyl ester m-Nitrophenyl tosylate p-Toluenesulfonic acid, m-nitrophenyl ester