发明授权
US4822891A 4-amino-2,3-di-substituted-1-(mono- or
trichlorophenyl)-3-pyrazolin-5-ones
失效
4-氨基-2,3-二取代-1-（单或三氯苯基）-3-吡唑啉-5-酮
- 专利标题： 4-amino-2,3-di-substituted-1-(mono- or trichlorophenyl)-3-pyrazolin-5-ones
- 专利标题（中）： 4-氨基-2,3-二取代-1-（单或三氯苯基）-3-吡唑啉-5-酮
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申请号： US13593申请日： 1987-02-11
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公开(公告)号： US4822891A公开(公告)日： 1989-04-18
- 发明人: Yoshio Inagaki , Tadao Shishido
- 申请人： Yoshio Inagaki , Tadao Shishido
- 申请人地址： JPX Kanagawa
- 专利权人： Fuji Photo Film Co., Ltd.
- 当前专利权人： Fuji Photo Film Co., Ltd.
- 当前专利权人地址： JPX Kanagawa
- 优先权： JPX57-6606 19820118
- 主分类号： C07D231/20
- IPC分类号： C07D231/20 ; C07D231/22 ; C07D231/26 ; C07D231/46 ; C12Q1/28 ; G01N33/52
摘要：
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.