BsiEI has been reformulated with Recombinant Albumin (rAlbumin) beginning with Lot #10237496. Learn more.
We are excited to announce that all reaction buffers are now BSA-free. NEB began switching our BSA-containing reaction buffers in April 2021 to buffers containing Recombinant Albumin (rAlbumin) for restriction enzymes and some DNA modifying enzymes. Find more details at www.neb.com/BSA-free.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 Support at freezers@neb.com or 1-800-632-5227 x 8.
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