Nitrocefin 1G. Nitrocefin, Purity:
/=95% by UV, CAS number: 41906-86-9, Molecular Formula: C21H16N4O8S2, MW: 516.5, Synonym: (6R,7R)-3-[2-(2,4-dinitrophenyl)ethenyl]-8-oxo-7-[(2-thiophen-2-ylacetyl)amino]-5-thia-1-azabicyclo[4.2.0]oct-2-ene-2-carboxylic