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Fremgangsmåde til fremstilling af blandinger af ortho-, meta- og parater- phenyl, hvori indholdet af en eller to af de isomere er under 10 vægtprocent.
Processo de preparar 2-alcoil-3-alil-tio-metil-7-sulfamil-3,4-di-hidro-benzeno-1,1-dioxo-1-tia-2,4 dulfamil-3 4-di-hidro-benzeno-1 1-dioxo-1-tio-2 4-diazinas-6-substituidas iazenas 6-substituidas