52647-07-1 | (9xi,11beta,16beta,17E)-9-fluoro-11,20-dihydroxy-16-methyl-3-oxopregna-1,4,17-trien-21-al | C22H27FO4 |
57943-81-4 | sodium [2R-(2alpha,3Z,5alpha)]-3-(2-hydroxyethylidene)-7-oxo-4-oxa-1-azabicyclo[3.2.0]heptane-2-carboxylate | C8H8NNaO5 |
53950-14-4 | L-lysine mono[[6R-[6alpha,7beta(R*)]]-7-[(aminophenylacetyl)amino]-3-methyl-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylate] | C22H31N5O6S |