cas no:n/a||chemical formula:c7h7cln2o4s||molecular weight:250.65300||exact mass:249.98151||(6r,7r)-7-amino-3-chloro-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2……
cas no:n/a||chemical formula:c23h23n3o6s||molecular weight:469.51200||exact mass:469.13076||3-nitrobenzyl3,3-dimethyl-7-oxo-6-(2-phenylacetamido)-4-thia-1-azabi……