Synonyms: 1-Azoniabicyclo[2.2.2]octane,4-(aminocarbonyl)-1-[[(6R,7R)-7-[[(2Z)-(5-amino-1,2,4-thiadiazol-3-yl)(methoxyimino)acetyl]amino]-2-carboxy-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-3-yl]methyl]-,inner salt (9CI); 1-Azoniabicyclo[2.2.2]octane,4-(aminocarbonyl)-1-[[7-[[(5-amino-1,2,4-thiadiazol-3-yl)(methoxyimino)acetyl]amino]-2-carboxy-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-en-3-yl]methyl]-,inner salt, [6R-[6a,7b(Z)]]-; 1,2,4-Thiadiazole,1-azoniabicyclo[2.2.2]octane deriv.; Antibiotic E 1040; Cefclidin; Cefclidine;E 1040; E 1040 (antibiotic)