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                        氯霉素化学结构简介
                        发布时间: 2015-10-13 12:20:24
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                        氯霉素化学结构简介:

                        氯霉素的化学结构含有对硝基苯基、丙二醇与二氯乙酰胺三个部分,其抗菌活性主要与丙二醇有关。

                        氯霉素为白色至微黄色细针状或片状结晶,无臭,味极苦,难溶于水,易溶于乙醇、丙酮,微溶于苯与石油醚。干燥状态下可保持抗菌活性5年以上,饱和水溶液在冰箱中或室温避光条件下可保持活力数月,医学考试网搜集整理碱性环境易破坏其抗菌活性,对热很稳定。氯霉素琥珀酸酯的钠盐在水中溶解度大,宜作为注射制剂,其余酯化物因除去苦味,可制成宜于儿童服用的混悬剂或粉剂。

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                                              广东快乐十分现场直播

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