4-mesil-2-nitrotoluen
reaktionsblandning av 1,1'-((dihydroxifenylen)bis(azo-3,1-fenylenazo(1-(3-dimetylaminopropyl)-1,2-dihydro-6-hydroxi-4-metyl-2-oxopyridin-5,3-diyl)))dipyridiniumdikloriddihydroklorid, blandade isomerer och 1-(1-(3-dimetylaminopropyl)-5-(3-((4-(1-(3-dimetylaminopropyl)-1,6-dihydro-2-hydroxi-4-metyl-6-oxo-5-pyridinio-3-pyridylazo)fenylazo)-2,4(eller 2,6 eller 3,5)-dihydroxifenylazo)fenylazo)-1,2-dihydro-6-hydroxi-4-metyl-2-oxo-3-pyridyl)pyridiniumdiklorid