参考文献
Piutti
Chemische Berichte, 1896 , vol. 29, p. 84
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Benevento
Gazzetta Chimica Italiana, 1898 , vol. 28 II, p. 204
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Hoechster Farbw.
Patent: DE73804 ;
Fortschr. Teerfarbenfabr. Verw. Industriezweige, vol. 3, p. 913