Catalog # E1050 was discontinued on September 22, 2026
Rapidly degrade residual PCR primers and dephosphorylate excess dNTPs after amplification
Reaction complete in 4 minutes
Thermolabile formulation can be heat inactivated in 1 minute at 80°C
PCR product can be used directly in downstream applications
Compatible with commonly-used reaction buffers
Product Information
The Exo-CIP Rapid PCR Cleanup Kit contains optimized formulations of thermolabile Exonuclease I and thermolabile Calf Intestinal Phosphatase (CIP) and is used to rapidly degrade residual PCR primers and dephosphorylate excess dNTPs after amplification. Degradation occurs in only 4 minutes at 37°C, and is immediately followed by rapid inactivation of the enzymes by heating for 1 minute at 80°C. In just 5 minutes, the PCR product is ready for downstream analysis, such as Sanger Sequencing, SNP detection, or library preparation for NGS. The Exo-CIP Rapid PCR Cleanup Kit is compatible with all commonly-used PCR buffers.
Figure 1. Exo-CIP Rapid PCR Cleanup Kit workflow
1 µl of Exo-CIP tube A (thermolabile Exo I) and 1 µl of Exo-CIP tube B (thermolabile CIP) are added to the PCR product to degrade excess primers and dNTPs. The mixture is incubated at 37°C for 4 minutes, followed by a 1 minute incubation at 80°C to irreversibly inactivate both enzymes. The cleaned PCR product is ready for downstream applications or analysis.
Figure 2. Exo-CIP Rapid PCR Cleanup Kit enables consistent read lengths for amplicons of varying length
PCR products of varying lengths were treated with Exo-CIP Rapid PCR Cleanup Kit or ExoSAP-IT PCR Cleanup Reagent following manufacturer-recommended protocols (5 min vs. 30 min). 3 µl of treated samples was used as input for Sanger sequencing on an ABI 3730 DNA Analyzer using BigDye Terminator chemistry (v3.1). Samples treated with Exo-CIP Rapid PCR Cleanup Kit yielded read lengths over 650 bases, matching samples treated with ExoSAP-IT PCR Cleanup Reagent.
Figure 3. Comparison of sequencing results with Exo-CIP Rapid PCR Cleanup Kit
A 1.5 kb amplicon treated with Exo-CIP Rapid PCR Cleanup Kit prior to sequencing eliminates miscalls and lowers background interference compared to untreated samples. The sequencing results were examined at different locations from the primer binding site. Results seen with Exo-CIP Rapid PCR Cleanup Kit are comparable to ExoSAP-IT PCR Cleanup Reagent.
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Specifications & Change Notifications
The Specification sheet is a document that includes the storage temperature, shelf life and the specifications designated for the product. The following file naming structure is used to name these document files: [Product Number]_[Size]_[Version]
The Certificate of Analysis (COA) is a signed document that includes the storage temperature, expiration date and quality controls for an individual lot. The following file naming structure is used to name these document files: [Product Number]_[Size]_[Version]_[Lot Number]
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This product is intended for research purposes only. This product is not intended to be used for therapeutic or diagnostic purposes in humans or animals.
New England Biolabs (NEB) is committed to practicing ethical science – we believe it is our job as researchers to ask the important questions that when answered will help preserve our quality of life and the world that we live in. However, this research should always be done in safe and ethical manner. Learn more.
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