Preparation process of cefotaxime sodium powder-injections
A technology of cefotaxime sodium and preparation process, which is applied in the field of medicine and chemical industry, can solve the problems of reducing the medicinal effect of cefotaxime sodium, and achieve the effects of enhancing injection safety and improving product quality
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[0026] The invention provides a preparation process of cefotaxime sodium powder injection for injection, the specific steps are:
[0027] (1) raw material preparation process: under the temperature condition of 15~20 ℃, prepare the mixed solvent of ethanol, acetone and water, the volume fraction of ethanol in the mixed solvent is 20~25%, the volume fraction of acetone is 8~10%, then Add cefotaxime acid to the mixed solvent and carry out stirring reaction to prepare cefotaxime sodium; add activated carbon for decolorization and sterile membrane filtration to obtain a filtrate; then add aseptic cefotaxime sodium seed crystals to the above filtrate, and stir Add ethanol dropwise under conditions, the stirring speed is 50-80r / min, and the dropping speed is 8-12mL / min. After the dropwise addition is completed, the crystal is grown for 35-55 minutes at a temperature of 5-15°C; finally, the raw material of cefotaxime sodium is obtained by vacuum filtration and drying.
[0028] (2) C...
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