New England Biolabs is working diligently to ensure we keep our employees and their families safe, while maintaining our business continuity. Despite a "Stay At Home" advisory being put in place in Massachusetts, USA, we are deemed an essential business, and our manufacturing and distribution teams continue to be fully operational. We are continuing to work with our suppliers and distribution partners to ensure uninterrupted access to our products and technical support.

NEBNext® Ultra™ End Repair/dA-Tailing Module

This module is part of the original Ultra™ workflow, and is optimized for use with the NEBNext® Ultra Ligation Module (NEB #E7445), for Illumina®-compatible library construction. The original Ultra workflow enables library preparation from 5 ng – 1 μg of input DNA in a streamlined protocol. 

However, we now recommend use of the more recent NEBNext Ultra II DNA workflow, which has been further optimized to provide increased yields of high quality libraries from a broader range of input amounts (500 pg – 1 μg), and a NEBNext Ultra II End Repair/dA-Tailing Module (NEB #E7546) is available.
Learn more about how this product is being used in the Product Citation Tool
2019-20_Catalog_Promo_0519
Catalog # Concentration Size
E7442S Not Applicable 24 reactions
E7442L Not Applicable 96 reactions
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