CAS 9015-85-4 appears in our catalog under these names: T4 DNA Ligase, expressed in E. coli, DNA LIGASE FROM T4-INFECTED ESCHERICHIA&, T4 DNA ligase. Offered by: Chemat, Sigma-Aldrich, MedChemExpress. Available pack sizes: 1KIU, 5KIU, 100UN, 500UN, 10 KU.