Delving into the Latest Updates on Tianjin Xuanhong Medical Technology Co., Ltd. with Synapse

Overview

This paper aims to investigate the mol. weight distribution of polysaccharides in freeze-dried Panax ginseng-Aconitum napellus for injection.Polysaccharides were extracted from Panax ginseng-Aconitum napellus for injection by 95% ethanol precipitation and identified by UV spectrophotometry.The polysaccharide content was determined by spectrophotometry, and mol. weight of polysaccharide was determined by gel column chromatog.The extracted polysaccharide contained no protein and nucleic acids.The calibration curve obtained by spectrophotometry had good linearity in the range of 15.585-93.510 μg with r = 0.9991.The weight average mol. weight ranges of polysaccharides were 33.0445 × 10⁴, 9.8878 × 10⁴, and 5.4087 × 10⁴, resp.This study provides references for selecting membrane for separation and purification of polysaccharides.

Jingxi Huagong Zhongjianti

Synthesis of α-ketophenylalanine calcium

Author: Shi, Xiuwei ; Zi, Chenrui ; Shi, Wei ; Zhou, Jingliang ; Hao, Hongshan

Two routes for the preparation of α-ketophenylalanine calcium from hydantoin or α-acetamidocinnamic acid were studied.The structure of the target compound was characterized with spectra anal.The route which used hydantoin as the starting material showed lower costs and higher yield and was suitable for industrial-scale production

Jingxi Huagong Zhongjianti

Synthesis of α-ketovaine calcium

Author: Zhou, Jingliang ; Zi, Chenrui ; Hao, Hongshan

5-Iso-propylidenhydantoin (4) was synthesized from the reaction of hydantoin (3) with acetone (2).Compound 4 can be further transformed into α-ketovaline calcium (1) in three ways.Based on the optimization and improvements of the reaction conditions, a facile industrial method was proposed.

100 Deals associated with Tianjin Xuanhong Medical Technology Co., Ltd.

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100 Translational Medicine associated with Tianjin Xuanhong Medical Technology Co., Ltd.

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Pipeline

Pipeline Snapshot as of 27 Apr 2026

The statistics for drugs in the Pipeline is the current organization and its subsidiaries are counted as organizations,Early Phase 1 is incorporated into Phase 1, Phase 1/2 is incorporated into phase 2, and phase 2/3 is incorporated into phase 3

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