| 摘要 |
Cationic dyestuffs of the general formula <IMAGE> wherein R represents hydrogen or an alkyl radical with a maximum of 8 C atoms, which is optionally substituted by non-ionic radicals, R1 represents hydrogen or an alkyl radical with a maximum of 4 C atoms, which is optionally substituted by non-ionic radicals, and An- represents an anion, and wherein the benzene rings and naphthalene rings can contain non-ionic radicals which are customary in dyestuff chemistry, are used for dyeing natural and synthetic cationically dyeable fibres, and paper.
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