124-64-1 55566-30-8 58591-11-0 65257-04-7 Bis(tetrakis(hydroxymethyl)phosphonium)sulfate (salt) CCRIS 316 EINECS 259-709-0 HSDB 4215 NCI-C55050 Octakis(hydroxymethyl)phosphonium sulfate Phosphonium, tetrakis(hydroxymethyl)-, sulfate (2:1) Phosphonium, tetrakis(hydroxymethyl)-, sulfate (2:1) (salt) Pyroset TKO Retardol S TETRAKIS(HYDROXYMETHYL)PHOSPHONIUM SULFATE THPS Tetrakis(hydroxymethyl) phosphonium sulfate [Tetrakis(hydroxymethyl)phosphonium salts] Tetrakis(hydroxymethyl)phosphonium sulphate(2:1)