1561-92-8 (SODIUM SALT) 2-Methyl-2-propene-1-sulfonic acid 2-Methyl-2-propene-1-sulfonic acid, sodium salt 2-Propene-1-sulfonic acid, 2-methyl- 2-Propene-1-sulfonic acid, 2-methyl-, sodium salt AIDS-155828 AIDS155828 Methallylsulfonic acid, sodium salt NSC2253 (SODIUM SALT) Sodium 2-methyl-2-propenesulfonate Sodium methallylsulfonate