2,2,7-Trimethyloctane-3,5-dione;-; 

(6R,7S)-7-[[4-(1-Amino-3-hydroxy-1,3-dioxopropan-2-ylidene)1,3-dithietane-2-carbonyl]amino]-7-methoxy-3-[(1-methyltetrazol-5-yl)sulfanylmethyl]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid;Cefotetan;