The PURExpress® Disulfide Bond Enhancer is a proprietary blend of proteins and buffer components formulated to correctly fold target proteins with multiple disulfide bonds.
Based on your Freezer Program type, you are trying to add a product to your cart that is either not allowed or not allowed with the existing contents of your cart. Please review and update your order accordingly If you have any questions, please contact Customer Service at firstname.lastname@example.org or 1-800-632-5227 x 8.
To save your cart and view previous orders, sign in to your NEB account. Adding products to your cart without being signed in will result in a loss of your cart when you do sign in or leave the site.