cloned at NEB recombinant time saver neb31 dil_A 37 65 Heat CpG

We are excited to announce that we are in the process of switching all reaction buffers to be BSA-free. Beginning April 2021, we will be gradually transitioning to buffers containing Recombinant Albumin (rAlbumin) for restriction enzymes and some DNA modifying enzymes. All information on the website has been updated to reflect this change. Find more details at


Having supplied restriction enzymes to the research community for over 45 years, NEB has earned the reputation of being the leader in enzyme technologies. Working continuously to be worthy of that distinction, NEB strives to develop enzymes of the highest purity and unparalleled quality.

Catalog # Concentration Size
R0138S 20,000 units/ml 2,000 units
R0138T 100,000 units/ml 2,000 units
R0138L 20,000 units/ml 10,000 units
R0138M 100,000 units/ml 10,000 units
Please enter a quantity for at least one size
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