CAS: 12055-62-8 Molecular Formula: Ho2O3 Molecular Weight (g/mol): 377.86 Synonym: Holmium oxide (Ho2O3),Diholmium trioxide,Holmia,Holmium oxide,Holmium sesquioxide,Holmium trioxide,Holmium(3+) oxide,Holmium(III) oxide,Nanotek WPC,Holmium(III) oxide,Holmia,Rare earth,Holmium(+3)oxide; IUPAC Name: oxo(oxoholmiooxy)holmium SMILES: O=[Ho]O[Ho]=O