CAS 9001-12-1 appears in our catalog under these names: Collagenase II, Collagenase I, Collagenase III, Collagenase IV, Collagenase V. Offered by: GLPBio, Thermo Scientific (Alfa Aesar), Biosynth, Sigma-Aldrich, MedChemExpress. Available pack sizes: 100mg, 500mg, 1g, 25mg, 250mg, 5g, 0,25g, 0,1g.