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4,7-dichlorofluorescein dyes as molecular probes

  • US 5,188,934 A
  • Filed: 11/14/1989
  • Issued: 02/23/1993
  • Est. Priority Date: 11/14/1989
  • Status: Expired due to Term
First Claim
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1. A compound having the formula:

  • ##STR11## wherein;

    A'"'"' is hydrogen, fluoro, chloro, or a group that may be converted to a linking functionality;

    D'"'"' is fluoro, chloro, or an acidic anionic group;

    X'"'"' is hydrogen, fluoro, or chloro;

    Z3 and Z4 are separately hydrogen, halo, lower alkyl, lower alkyloxy, or a group that may be converted to a linking functionality; and

    wherein at least one of A'"'"', Z3, and Z4 is a group that may be converted to a linking functionality.

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