4.
    发明专利
    未知

    公开(公告)号:DE1644074A1

    公开(公告)日:1971-07-01

    申请号:DE1644074

    申请日:1967-12-01

    Applicant: BASF AG

    Abstract: 1,238,924. Monoazo dyes. BADISCHE ANILIN- & SODA-FABRIK A.G. 29 Nov., 1968 [1 Dec., 1967], No. 56710/68. Heading C4P. The invention comprises monoazo dyes of formula wherein R is alkyl which may be substituted, aralkyl or cycloalkyl and X is H, Na or K. The dyes are prepared by coupling a diazotized aminophthalic acid with 2-amino-8- naphthol-6-sulphonic acid and are used to colour synthetic polyamide fibres in red shades.

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