2-(2,4-diklor-5-prop-2-iniloksifenil)-5,6,7,8-tetrahidro-1,2,4-triazolo[4,3-a]piridin-3(2H)-on
reaktionsprodukt av 1,1,1-tris(p-hydroxifenyl)etan med 6-diazo-5,6-dihydro-5-oxo-1-naftylsulfonylklorid och 3-diazo-3,4-dihydro-4-oxo-1-naftylsulfonylklorid (2:1);