3-Sulfo-4-methoxybenzaldehyde sodium salt 5393-59-9 Benzenesulfonic acid, 5-formyl-2-methoxy-, sodium salt EINECS 226-400-7 NSC 4743 Sodium 4-methoxybenzaldehyde-3-sulfonate Sodium 5-formyl-2-methoxybenzenesulfonate Sodium 5-formyl-2-methoxybenzenesulphonate