Formula: WSe2 Formula weight: 341.77 Purity: 99.8% (metals basis) CAS Number: 12067-46-8 UN Number: UN3077 Hazard Class: 9 Packing Group: III Harmonized Tariff Code:  2842.90 Hazard Statements: H301-H331-H373 Toxic if swallowed. Toxic if inhaled. May cause damage to organs…