At the same time , we also can supply taed , thiourea , melamine , aluminum sulphate , titanium dioxide rutile and anatase , rubber accelerator , methyl cellulose , hydroxypropyl methyl cellulose , monoammonium phosphate and other phosphates , 2 - ethyl anthraquinone , etc 同时还可为客户提供四乙酰乙二胺硫脲三聚氰胺硫酸铝钛白粉橡胶促进剂甲基纤维素羟乙基甲基纤维素羟丙基甲基纤维素，磷酸二氢铵2 -乙基蒽醌等十几种优质化工品。
A facile method for the preparation of 10 - arylmethylene anthrone is reported . when anthrone react with aryl aldehyde in the presence of pyridine by using xylene as the solvent , besides 10 - arylmethylene anthrone derivatives we found other oxygenated anthrone which have not been reported . physical methods shows that the oxygenated anthrone is anthraquinone , and the anthraquinone cannot be removed from the condensed products by recrystallization with solvents . an effective method of getting ride of anthraquinone is sublimation by heating 以蒽酮和芳香醛为原料，二甲苯为溶剂，吡啶催化法制取10 -芳香基甲叉基蒽酮.发现其生成物中除含有目标化合物10 -芳香基甲叉基蒽酮外，还含有部分文献中没有报道的蒽酮氧化物，经物理方法确定其为蒽醌.该化合物不能用溶剂重结晶的方法将其从缩合产物中除去，有效的分离方法是升华
In recent years , the foreign producers of organic pigment increased the capacity of high performance organic pigments ( hpop ) , including the types of perylene series , isoindolinones , quinacridones , copper phthalocyanines , anthraquinones , dioxazines , special azo dyes and high performance naphthols 摘要近几年，国外有机颜料生产公司增加了高档有机颜料的生产能力，生产的高档有机颜料品种包括?系、异吲哚啉酮类、喹吖啶酮类、铜酞菁类、蒽醌类、二恶嗪类、特殊偶氮类和高档色酚类。
More anthraquinone compounds was distributed in pith ray cells and the tissues of mature stem suchas bundle sheaths in large - scale vascular bundle , primary phloem and primary xylem than that in young stem . [ conclusion ] the distribution of anthraquinone compounds in the stem was of multilocus 结果随着茎的不断成熟，在茎的表皮、近表皮的1 ~ 2层皮层细胞及较内部皮层中，不同程度地增加贮藏和积累了一定数量的蒽醌类化合物，成为茎外部贮藏和积累蒽醌共化合物的主要结构部位成热茎大型维管束的维管束鞘、初生韧皮部、初生木质部等组织和髓射线细胞分布了比幼茎多的蒽醌类化合物。
