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公开(公告)号:BR7308790D0
公开(公告)日:1974-08-29
申请号:BR879073
申请日:1973-11-09
Applicant: BASF AG
Abstract: Trisazo dyes containing sulfo groups and having the formula: which for the most part give black colorations on paper and particularly on leather and are therefore especially useful as leather dyes.
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