发明授权
- 专利标题: Indicators for determining the proton concentration of strongly alkaline aqueous solutions
- 专利标题(中): 确定强碱性水溶液质子浓度的指标
-
申请号: US448413申请日: 1995-06-01
-
公开(公告)号: US5747656A公开(公告)日: 1998-05-05
- 发明人: Wolfgang Fischer , Sylvia Baum , Thorsten Hartig , Michael Schleehahn
- 申请人: Wolfgang Fischer , Sylvia Baum , Thorsten Hartig , Michael Schleehahn
- 申请人地址: DEX Darmstadt
- 专利权人: Merck Patent Gesellschaft Mit Beshrankter Haftung
- 当前专利权人: Merck Patent Gesellschaft Mit Beshrankter Haftung
- 当前专利权人地址: DEX Darmstadt
- 优先权: DEX4333696.5 19931002
- 主分类号: C07D277/66
- IPC分类号: C07D277/66 ; G01N31/22 ; C09B29/12 ; C09B29/00 ; C09B29/36 ; C09B67/42
摘要:
The invention relates to indicators for determine the proton concentration of strongly alkaline aqueous solutions which contain compounds of the formula (I) ##STR1## in which ##STR2##
信息查询