Bis(cyclopentadienyl) osmium(II) CMI Part 4027 Bis(cyclopentadienyl) osmium(II) CAS Number1273-81-0 Molecular Weight320.40 Molecular FormulaOs(C5H5)2 Synonyms (1) Osmocene(2) Cp2Os Download Specifications PDF Download Specifications PDF Request A Quote Product Request Form Product NameContact Name*Phone Number*Email Address* Company Name*Quantity of*Product Desired