作者: Nathan N. Crounse , Patrick J. Jefferies
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摘要: N,N-Dialkyl-N-aminoalkyl-N-aminophenylalkyl quaternary ammonium salts and N-methyl-N-(3-aminophenoxy-2-hydroxy-1-propyl)-N,N-bis(3-aminopropyl) their N-nitrophenylalkyl N-(3-nitrophenoxy) precussor salts, respectively are intermediates to water-soluble azo-dyestuffs useful for coloring natural fibers, synthetic fiber-forming materials cellulosic materials. These dyes dye cotton paper various shades of yellows, reds, oranges with less prone bleed a high degree discharge when bleached hypochlorite or chlorine bleaches.