发明授权
- 专利标题: Mono- and dipotassium salts of azo compounds
- 专利标题(中): 偶氮化合物的单钾盐和二钾盐
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申请号: US09665506申请日: 2000-09-19
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公开(公告)号: US06281338B1公开(公告)日: 2001-08-28
- 发明人: Richard Sommer , Frank Linke , Udo Herrmann
- 申请人: Richard Sommer , Frank Linke , Udo Herrmann
- 优先权: DE19945245 19990921
- 主分类号: C09B29036
- IPC分类号: C09B29036
摘要:
Mono- or dipotassium salts of azo compounds conforming to the formula (I) or one of its tautomeric structures where R and R′ are independently OH, NH2, NH—CN, acylamino or arylamino and R1 and R1′are independently —OH or —NH2, and also their hydrates.
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