Synonym(s): Ruthenium carbonyl, Triruthenium dodecacarbonyl Formula: C12O12Ru3 Formula weight: 639.33 Purity: 99% CAS Number: 15243-33-1 UN Number: UN3466 Hazard Class: 6.1 Packing Group: III Harmonized Tariff Code:  2843.90 Hazard Statements: H331 Toxic if inhaled. …