Dihydroxydimethyldiphenylmethanedisulphonic acid polymer;Methylenebis(hydroxytoluenesulphonic acid) polymer;Policresulen;2-hydroxy-3,5-bis[(4-hydroxy-2-methyl-5-sulfophenyl)methyl]-4-methylbenzenesulfonic acid;FC1272;Policresulene;Policresuleno;Policresulenum;2-Hydroxy-3,5-bis[(4-hydroxy-2-methyl-5-sulfo-phenyl)methyl]-4-methyl-benzenesulfonic acid;Negatan;Policresulen 50%;Policresulen ,45%;Policresulen [inn];Policresulen(50%, 36%);PolicresulenC15H16O8S2;POLICRESULEN(ALBOTHYL);Benzenesulfonic acid, 2-hydroxy-4-methyl-, polymer with formaldehyde;2-HYDROXY-3,5-BIS[(4-HYDROXY-2-METHYL-5-SULFO-PHENYL)METHYL]-4-METHYL-BENZENESULFONIC ACID