Zhejiang Hisun Pharmaceutical Co., Ltd.

East China University of Science and Technology

Shanghai Institute of Pharmaceutical Industry

Shanghai Xuanchuang Biological Technology Co., Ltd.

Guobin Ren

Jinyao Chen

Minghui Qi

Feng Chen

Hua Bai

Changliang Dai

Wenming Zhu

Minghuang Hong

Zhong Xian Li

Ying Liu

Zhen Zhang

Jian Hu

Quanhai Liu

Li Cai

Minyu Liu

Xiaoyong Xu

Xuejun Wu

Renhai Chen

Yan Qin

Yifang Deng

Lin Xiao

Xiaoling Huang

Haiyan Sun

Zhiru Xu

Chungang Li

Liling Jin

Xiangduan Tan

Tian Zhang

Chengyu Gong

Provided are a pyrroloquinoline quinone glycine betaine salt and a crystalline form thereof. The pyrroloquinoline quinone glycine betaine salt has the advantages of high solubility, good stability, a simple preparation process and low solvent residue.

Pyrroloquinoline quinone glycine betaine salt

A tebuconazole polymorph and a preparation method therefor are described. In particular, a polymorph of (RS)-1-(4-chloropheny)-4,4-dimethyl-3-(1H-1,2,4-triazol-1-ylmethyl) pentan-3-ol, a preparation method therefor and use thereof are provided. The tebuconazole polymorph has a high purity and excellent crystallization properties, is stable under high humidity, high temperature and light conditions, has excellent solubility, and has high processing properties for formulations, high biological activities and good sterilization effects. The preparation method is simple, has stable processes, and can be implemented on a large scale. The polymorph can greatly improve the quality control and industrial application of tebuconazole-containing pesticides.

Tebuconazole polymorph and preparation method therefor

Provided are several types of ginsenoside polymorphic substances and a method for preparing same. In particular, new crystal form A, crystal form B, crystal form C, crystal form E, crystal form F, crystal form I, crystal form K, crystal form L, crystal form M, crystal form N, and crystal form O are involved.

Ginsenoside C-K polymorphic compounds and method for preparing same

Provided are ginsenoside C-K polymorphic forms and a method for preparing same. The ginsenoside C-K polymorphic forms are crystal form D and crystal form H.

Two crystal forms of ginsenoside C-K and method for preparing same

An amorphous asiatic tromethamine salt and the preparation method thereof. The method includes the steps of: (1) dissolving asiatic acid in an organic solvent; step (2) mixing with tromethamine; step (3) stirring and salifying the same, and then removing the organic solvent. The method for preparing the amorphous asiatic tromethamine salt is easy and effective, and the water solubility and bioavailability of the asiatic tromethamine salt thus obtained are greatly compared with the prior art.

Amorphous asiatic tromethamine salt and preparation method thereof

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Guobin Ren