英文别名Cefoxitin Impurity 1; Cefoxitin EP Impurity A; (6R,7S)-3-(Hydroxymethyl)-7-methoxy-8-oxo-7-(2-(thiophen-2-yl)acetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid; (6R,7R)-3-(hydroxymethyl)-7-methoxy-8-oxo-7-[(2-thiophen-2-ylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid; (6R-cis)-3-(hydroxymethyl)-7-methoxy-8-oxo-7-(2-thienylacetamido)-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid; (6R,6β)-3-Hydroxymethyl-7β-methoxy-8-oxo-7-[[(2-thienyl)acetyl]amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid; (7S)-3-(Hydroxymethyl)-7-[(2-thenylcarbonyl)amino]-7-methoxycepham-3-ene-4-carboxylic acid; Cefoxitin Impurity 5; Cefoxitin Impurity A (EP)(Decarbamoyl cefoxitin); 3-hydroxymethyl-7c-methoxy-8-oxo-7t-(2-thiophen-2-yl-acetylamino)-(6rH)-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid 
