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发明名称
Verfahren zur Herstellung einer in hydroxylgruppenhaltigen organischen Lösungsmitteln löslichen Chronverbindung des Triphenylmethanfarbstoffes aus 3,3'-Dimethyl-4,4'-dioxydiphenylmethan und 1-Phenyl-3-methyl-5-pyrazolon.
摘要
申请公布号
CH200546(A)
申请公布日期
1938.10.15
申请号
CHD200546
申请日期
1937.02.06
申请人
J. R. GEIGY A.-G.
发明人
A.-G. J. R. GEIGY
分类号
C09B5/20;C09B11/26
主分类号
C09B5/20
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代理人
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