CAS 10378-50-4 appears in our catalog under these names: Potassium perruthenate(VII), 97% , Potassium perruthenate, 97%, Potassium perruthenate. Offered by: Thermo Scientific (Alfa Aesar), Chemat, Sigma-Aldrich. Available pack sizes: 1g, 5g, 25mg, 100mg, 250mg, 500MG.