英文别名 lactozym oryzatym maxilact hydrolact β-Galactosidase beta-lactosidase beta-galactosidas beta-d-lactosidase Lactase, Lactozyme(R) 3000 L beta-galactosidase from E. coli CAS 9031-11-2 EINECS 232-864-1Produced by National Engineering Laboratory. ISO9001: 2015 quality management system certification. The purity is above 98%!