CAS 104439-77-2 appears in our catalog under these names: Shvo's Catalyst, 1-Hydroxytetraphenylcyclopentadienyl(tetraphenyl-2,4-cyclop , 1-Hydroxytetraphenylcylclopentadienyl(tetraphenyl-2,4-cyclopentadien-1-one)-mu-hydrotetracarbonyldiruthenium(II), Shvo's Catalyst 98%, 1-HYDROXYTETRAPHENYL-CYCLOPENTADIENYL(TE. Offered by: TRC, Thermo Scientific (Alfa Aesar), TCI, Ambeed, Sigma-Aldrich. Available pack sizes: 100mg, 1g, 500mg, 0.5g, 2g, 250mg, 5g.