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REDTaq® ReadyMix PCR Reaction Mix

Complete PCR reagent with standard Taq DNA Polymerase and inert dye


Quality Level




sufficient for 100 reactions
sufficient for 20 reactions


dNTPs included: no
hotstart: no


PCR: suitable




purified DNA



shipped in

wet ice

storage temp.


Related Categories

General description

REDTaq® ReadyMix is a ready-to-use mixture of Taq DNA polymerase, 99% pure DNTPs, reaction buffer, and an inert red dye in a 2X concentrate. After the PCR reaction, the PCR product can be loaded directly onto an agarose gel. The red loading dye migrates at approximately the same rate as a 125 base pair fragment in a 1% agarose gel. The inert dye has no effect on the amplification process, and therefore, a sample can be easily re-amplified such as in “nested PCR”.


REDTaq® ReadyMix PCR Reaction Mix has been used:
  • for routine polymerase chain reaction (PCR) amplification.
  • for the PCR amplification of cDNA
  • in semi-quantitative PCR

Features and Benefits

The benefits of REDTaq® with the convenience of ReadyMix
  • Saves preparation time
  • Reduces risk of contamination from multiple pipet steps and and increased reproducibility.
  • Provides consistent reaction-to-reaction performance
  • No loading buffer/tracking dye needs to be added. The PCR product is loaded directly into an agarose gel after amplification
  • The red tracer migrates at approximately the same rate as a 125bp fragment (slightly faster than bromophenol blue)
  • Amplifies targets up to 7 kb in length
  • Because no loading buffer has been added, a sample can be easily re-amplifed such as in nested PCR.
  • Stable at 4°C or −20°C.
  • Ready-mix format reduces setup time.


Default reaction volume is 50 μL

20RXN is packaged as 1 X 500 μL
100RXN is packaged as 1 X 2.5 mL

Preparation Note

Add 25 μl of ReadyMix to template, primers and water to a final reaction volume of 50 μl. The PCR product is easily separated from the dye by standard purification methodologies. The inert red dye has no effect on automated sequencing and is suitable for restriction enzyme digestion, ligation and other downstream manipulations.

Legal Information

Use of this product is covered by one or more of the following US patents and corresponding patent claims outside the US: 5,789,224, 5,618,711, 6,127,155 and claims outside the US corresponding to expired US Patent No. 5,079,352. The purchase of this product includes a limited, non-transferable immunity from suit under the foregoing patent claims for using only this amount of product for the purchaser′s own internal research. No right under any other patent claim, no right to perform any patented method, and no right to perform commercial services of any kind, including without limitation reporting the results of purchaser′s activities for a fee or other commercial consideration, is conveyed expressly, by implication, or by estoppel. This product is for research use only. Diagnostic uses under Roche patents require a separate license from Roche. Further information on purchasing licenses may be obtained by contacting the Director of Licensing, Applied Biosystems, 850 Lincoln Centre Drive, Foster City, California 94404, USA.
REDTaq is a registered trademark of Sigma-Aldrich Co. LLC
ReadyMix is a trademark of Sigma-Aldrich Co. LLC

Storage Class Code

10 - Combustible liquids



Certificate of Analysis

Certificate of Origin

G Holeiter et al.
Oncogenesis, 1, e13-e13 (2012-01-01)
Epithelial cell-cell contacts are mediated by E-cadherin interactions, which are regulated by the balanced local activity of Rho GTPases. Despite the known function of Rho at adherens junctions (AJs), little is known about the spatial control of Rho activity at
Tamar Guy-Haim et al.
PeerJ, 6, e5268-e5268 (2018-07-31)
Aquatic subterranean species often exhibit disjunct distributions, with high level of endemism and small range, shaped by vicariance, limited dispersal, and evolutionary rates. We studied the disjunct biogeographic patterns of an endangered blind cave shrimp, Typhlocaris, and identified the geological
Transforming growth factor-beta-inducible early response gene 1 is a novel substrate for atypical protein kinase Cs
Alemu EA, et al.
Cellular and Molecular Life Sciences, 68(11), 1953-1968 (2011)
RNA activation of the vascular endothelial growth factor gene (VEGF) promoter by double-stranded RNA and hypoxia: role of noncoding VEGF promoter transcripts
Lopez P, et al.
Molecular and Cellular Biology, 36(10), 1480-1493 (2016)
Katherine L Gross et al.
Molecular endocrinology (Baltimore, Md.), 25(7), 1087-1099 (2011-04-30)
Glucocorticoids regulate a variety of physiological processes and are commonly used to treat disorders of inflammation, autoimmune diseases, and cancer. Glucocorticoid action is predominantly mediated through the classic glucocorticoid receptor (GR)α isoform. Recent data suggest that the mature GRα mRNA


Introduction and Historical Timelines

Learn about the history of the polymerase chain reaction (PCR), from the basic principles that proceeded its discovery to the awarding of a Nobel Prize for Chemistry and more recent developments such as real-time PCR (qPCR) and digital PCR.

PCR Master Mix

A PCR master mix is a batch of PCR or RT-PCR reagents that can be divided among many PCR reaction tubes. It usually includes DNA polymerase, dNTPs, MgCl2 and buffer. Make your own master mix or choose a commercial one.

Polymerase Chain Reaction (PCR) Basics

Polymerase chain reaction (PCR) is a technique that results in exponential amplification of a target DNA sequence.


Applications with REDTaq™

Reviews the applications and benefits for RedTaq, including standard RedTaq, Hot Start RedTaq and RedTaq for genomic DNA PCR.

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

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