CAS 9012-90-2 appears in our catalog under these names: Taq DNA Polymerase Kit , Taq DNA Polymerase, Concentration 5000 units/mL , Taq Polymerase from Thermus aquaticus, expressed in E. coli, DNA polymerase, Taq DNA Polymerase Thermus aquaticus wit. Offered by: Thermo Scientific (Alfa Aesar), Thermo Scientific (Fisher), Chemat, MedChemExpress, Sigma-Aldrich. Available pack sizes: 400units , 5EA, 1KIU, 5KIU, 100U, 1KU, 500U, 1.5KU.