17-Methylene-androst-4-en-3-one , 98% , 【846-45-7】
Molecular Formula: C20H28O
Formula Weight: 284.44
[6R-[6alpha,7beta(R*)]]-3-(acetoxymethyl)-7-[(formyloxy)phenylacetamido]-8-oxo-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic acid , 95% , 【87932-78-3】
Molecular Formula: C19H18N2O8S
Formula Weight: 434.42
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