methacrylonitrile; 2-methyl-2-propene nitrile
acide 5-[8-[4-[4-[4-[7-(3,5-dicarboxylatophénylazo)-8-hydroxy-3,6-disulfonatonaphtalén-1-ylamino]-6-hydroxy-1,3,5-triazin-2-yl]-2,5-diméthylpipérazin-1-yl]-6-hydroxy-1,3,5-triazin-2-ylamino]-1-hydroxy-3,6-disulfonaphtalén-2-ylazo]-isophtalique