Cefapirin (INN, also spelled cephapirin) is an injectable, first-generation cephalosporin antibiotic. It is marketed under the trade name Cefadyl. Production for use in humans has been discontinued in the United States.

CAS：21593-23-7
中文别名：
英文别名：Cefa;Cefaprin sodium;(6R)-3-acetoxymethyl-8-oxo-7t-(2-pyridin-4-ylsulfanyl-acetylamino)-(6rH)-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid;Cefapirina;Cefapirine;Cefapirinum;7-(2-(4-pyridylthio)acetamido)cephalosporanic acid;Cephapirin;(6R,7R)-3-(acetyloxymethyl)-8-oxo-7-[(2-pyridin-4-ylsulfanylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid;Cephapirine;Cefaprin;CEPR;Cefapirin;
分子式：C17H17N3O6S2
分子量：423.463
精确质量：423.056
Psa：179.99
Logp：1.2536

EINECS号：244-466-5

蒸汽压：6.98E-26mmHg at 25°C