155934-97-7 1561-92-8 194810-55-4 2-Methyl-2-propene-1-sulfonic acid, sodium salt 2-Propene-1-sulfonic acid, 2-methyl-, sodium salt AI3-16415 EINECS 216-341-5 Methallyl sulfonate Methallylsulfonic acid, sodium salt NSC 2253 Sodium 2-methyl-2-propenesulfonate Sodium 2-methylprop-2-ene-1-sulphonate Sodium methallylsulfonate