Synonym: Bis(cyclopentadienyl)iron, Di(cyclopentadienyl)iron CAS Number: 102-54-5 Linear Formula: Fe(C5H5)2 Molecular Weight: 186.03 EC Number: 203-039-3 Description Packaging 5, 100, 500 g in glass btl Properties vapor pressure 0.03 mmHg ( 40 °C) assay 98% bp 249 °C(lit.) mp 172-174 °C(lit.) UV absorption λmax 358 nm