2-[(p-Aminophenyl)sulfonyl]ethyl sodium sulfate 4-(2-Sulfatoethylsulfonyl)aniline sodium salt 4-Aminophenyl 2-sulfatoethyl sulfone sodium salt Ethanol, 2-[(4-aminophenyl)sulfonyl]-, 1-(hydrogen sulfate), sodium salt (1:1) Ethanol, 2-[(4-aminophenyl)sulfonyl]-, hydrogen sulfate (ester), monosodium salt Sodium 2-(p-aminophenylsulfonyl)ethyl sulfate