4-amino-2,3-di-substituted-1-(mono- or trichlorophenyl)-3-pyrazo

Details 4-amino-2,3-di-substituted-1-(mono- or trichlorophenyl)-3-pyrazo 4-amino-2,3-di-substituted-1-(mono- or trichlorophenyl)-3-pyrazo

1987-02-11

1989-04-18

Ramsuer, Robert W.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D23146

Patent

active

048228915

ABSTRACT:
Novel compounds are disclosed which are 4-amino-2,3-di-substituted-1-(mono- or trichlorophenyl)-3-pyrazolin-5-ones-representing by the following formulae (1) to (3); ##STR1## and acid addition salts thereof. The compounds can be easily produced and are useful for qualitative analysis or quantitative analysis of hydrogen peroxide when used as a component of a color indicator composition for detecting hydrogen peroxide.

REFERENCES:
patent: 4247631 (1981-01-01), Nix et al.

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