Novel bis-pyrazolone oxonol dyes

Details Novel bis-pyrazolone oxonol dyes Novel bis-pyrazolone oxonol dyes

1974-08-27

1976-01-20

Meyers, Albert T.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260240, 2602402, C07D23142, C07D23300, C07D23500, C07D26116

Patent

active

039337987

ABSTRACT:
Novel, water-insoluble bis-pyrazolone oxonol dyes are provided wherein each pyrazolone nucleus carries an alkyl sulfonamidophenyl moiety on the 1-position nitrogen atom and an electron-withdrawing substituent on the 3-position carbon atom.

REFERENCES:
patent: 2621125 (1952-12-01), Dormael et al.
patent: 2944901 (1960-07-01), Carroll
patent: 3502474 (1970-03-01), Tsuda et al.
patent: 3795519 (1974-03-01), Mlyazake et al.

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