Organic compounds -- part of the class 532-570 series – Organic compounds – Azo
Patent
1992-11-06
1993-10-19
Cintins, Marianne M.
Organic compounds -- part of the class 532-570 series
Organic compounds
Azo
534728, C09B 6235
Patent
active
052546748
ABSTRACT:
A diaminoazothiophene compound represented by the formula (I): ##STR1## salts thereof or metal complexes thereof and a method for preparing the same.
REFERENCES:
patent: 4952681 (1990-08-01), Hansen et al.
Steinkopf et al, Uber die Diazotierbarkeit von Aminothiophenen, Mar. 1926, pp. 210-222 (German) (English abstract).
Nishino Hitoshi
Seki Kenji
Tada Shin-ichi
Yokomichi Yasunori
Cintins Marianne M.
Osaka Gas Company Limited
Peabody, III John D.
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