2,2,2,2-[(4,8-dipiperidinopyrimido[5,4-d]pyrimidine-2,6-diyl)dinitrilo]tetraethanol bis(toluene-p-sulphonate)
2,2,2,2-[(4,8-dipiperidinopyrimido[5,4-d]pyrimidine-2,6-diyl)dinitrilo]tetraethanol bis(toluene-p-sulphonate) ·
2,2,2,2-[(4,8-dipiperidinopyrimido[5,4-d]pyrimidine-2,6-diyl)dinitrilo]tetraethanol bis(toluene-p-sulphonate) ·