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US5302704A Azodyes containing a sulfoacetoacetic acid anilide coupling component 失效
含有磺乙酰乙酸苯胺偶联组分的偶氮染料

Azodyes containing a sulfoacetoacetic acid anilide coupling component
摘要:
Dyes of formula ##STR1## wherein D is the radical of a diazo component of the benzene or naphthalene series or of the heterocyclic series, R.sub.1 is hydrogen or C.sub.1 -C.sub.4 alkyl and R.sub.2 is phenyl or substituted phenyl, give dyeings of good fastness properties on nitrogen-containing or hydroxyl group containing fibre materials.
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