The other intermediate of dyes, 2-amino-5-nitrophenol, was prepared by nitration and hydrolyze starting from benzooxozolenone. The total yield is over 70% and the purity 98.8% by the analysis of HPLC.
以苯并恶唑酮为原料，经混酸硝化、加压水解两步反应合成了2-氨基-5-硝基苯酚，总收率达70％以上。
Dimethyl Acetylsuccinate (DMAS) was an important organic chemical intermediate, and widely used in the fields of pharmaceuticals, pesticide, pigment, dyes and organic synthesis research etc.
乙酰基丁二酸二甲酯是一种重要的有机化工中间体，广泛用于医药、农药、染料、食品添加剂和基础研究等领域。
Naphthol AS-BI is an important pigment intermediate, which is used to synthesize a new kind of high quality azo dyes.
色酚as - BI是一种颜料中间体，以它为原料合成的偶氮颜料是一类性能优良的新型颜料。
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