发明授权
US06281338B1 Mono- and dipotassium salts of azo compounds 有权
偶氮化合物的单钾盐和二钾盐

Mono- and dipotassium salts of azo compounds
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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