201311301(3S)-3-[(hydroxyamino)methyl]-5-methyl-hexanoic acid

201311302Isopropyl (S)-2-hydroxy-2-phenylacetate

2013113035-methyl-3-[(prop-2-enoylamino)methyl]hexanoic acid

201311304N-(2,2-dihydroxyethyl)-2-(tetrazol-1-yl)acetamide

2013113052-[carboxy-[[2-(tetrazol-1-yl)acetyl]amino]methyl]-5-[(5-methyl-1,3,4-thiadiazol-2-yl)sulfanylmethyl]

201311306Cefazolin Impurity 32

2013113072-(1H-tetrazol-1-yl)acetic pivalic anhydride

201311308sodium;(6R,7R)-3-(acetyloxymethyl)-8-oxo-7-[[2-(tetrazol-1-yl)acetyl]amino]-5-thia-1-azabicyclo[4.2.0

201311309(6R,7R)-3-methyl-8-oxo-7-[[2-(tetrazol-1-yl)acetyl]amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carbo

201311310N-[(4R,5R)-3,11-dioxo-10-oxa-6-thia-2-azatricyclo[6.3.0.02,5]undec-1(8)-en-4-yl]-2-(tetrazol-1-yl)ace

2013113112,2-dimethyl-1-(5-methyl-2-thioxo-1,3,4-thiadiazol-3(2H)-yl)-1-propanone

201311312N-(ethoxymethylene)-glycine