基本信息
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頭孢氨芐
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15686-71-2
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苯甘頭孢霉素;頭孢立新;先鋒霉素Ⅳ;頭孢菌素Ⅳ;(6R,7R)-3-甲基-7-((R)-2-氨基-2-苯乙酰氨基)-8-氧-5-硫雜-1-雙環(4.2.0)辛-2-烯-2-甲酸
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C16H17N3O4S
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347.39
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Cephalexin
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239-773-6
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1.5g/cm3
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5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylicacid, 7-(2-amino-2-phenylacetamido)-3-methyl-8-oxo-, D- (8CI);Sanaxin;Sencephalin;Sepexin;Septilisin;Servispor;Sialexin;Sinthecillin;Sintolexyn;Sporicef;Sporidex;Syncl;Syncle;Synecl;Taicelexin;Tepaxin;Tokiolexin;Uphalexin;Vetolexin;Voxxim;Winlex;Xahl;? Cefalexine;5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid,7-[(aminophenylacetyl)amino]-3-methyl-8-oxo-, [6R-[6a,7b(R*)]]-;5-Thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid, 7-[[(2R)-aminophenylacetyl]amino]-3-methyl-8-oxo-,(6R,7R)- (9CI);7-(a-Amino-D-phenylacetamido)-3-deacetoxycephalosporanic acid;7-[D-(-)-a-Aminophenylacetamido]-3-methyl-3-cephem-4-carboxylicacid;Alcephin;Alsporin;Biocef;Carnosporin;Cefablan;Cefadal;Cefadin;Cefadina;Cefadros;Cefadyl;Cefaleksin;Cefalexin;Cefalin;Cefaloto;Cefanex;Cefaseptin;Ceforal;Cefovit;Celexin;Cepastar;Cepexin;Cephacillin;
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393.7oC
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196-198°C
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727.4oC at760mmHg
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詳細信息
頭孢氨芐
Cefalexin
該品為白色或乳黃色結晶性粉末;微臭。該品在水中微溶,在乙醇、氯仿中不溶。比旋度取該品,精密稱定,加水溶解并稀釋成每1ml中含5mg的溶液,依法測定,比旋度為+144度至+158度。吸收系數 取該品,精密
稱定,加水溶解并稀釋成每1ml中約含20μg的溶液,照分光光度法,在262nm的波長處測定吸收度,吸收系數為220~245。
該品通過抑制細胞壁的合成,使細胞內容物膨脹至破裂溶解,從而達到殺菌作用。該品為廣譜抗生素。對革蘭氏陽性菌和革蘭氏陰性菌均有抗菌作用,注射后吸收迅速而完全,生物利用率高。特別加入增效抗炎因子,使該品具有標本兼治得效果,其殺菌能力比青霉素類大20倍,比磺胺類大10倍、比喹諾酮類大5倍。