Shaanxi Dideu Medichem Co. Ltd, based in China, lists Proteinase K CAS NO 39450-01-6 on Global Trade Plaza. The product is described as a lyophilized powder from Tritirachium album limber with CAS No. 39450-01-6, molecular formula C29H27N2O12P, and molecular weight 29kDa (SDS-PAGE). It is purified to remove RNase and DNase activities and is stable in urea and SDS. Buyers can send an enquiry through Global Trade Plaza.