1,6-Bis(4-methylphenylsulfonyloxy)-2,4-hexadiyne 1,6-Bis(tosyloxy)-2,4-hexadiyne 2,4-Hexadiyne-1,6-diol bis(p-toluenesulfonate) Bis(p-toluenesulfonic acid)2,4-hexadiyne-1,6-diyl ester TS-6 hexa-2,4-diyne-1,6-diyl bis(4-methylbenzenesulphonate) 2,4-Hexadiyne-1,6-diol, bis(4-methylbenzenesulfonate) 2,4-Hexadiyne-1,6-diol, 1,6-bis(4-methylbenzenesulfonate)