Latest News

CDC Adds Two Quantabio RT-qPCR ToughMix Kits to COVID-19 Diagnostic Testing Protocol

qScript XLT 1-Step RT-qPCR ToughMix and UltraPlex 1-Step ToughMix granted Emergency Use Authorization (EUA)

NEW! 1-Step Virus ToughMix- optimized to detect for low copy inputs in Flu-A, Flu-B and SARS-CoV-2

We are working tirelessly to increase our production capacities as it relates to the following RNA RT-qPCR reagents which are cited in the CDC protocol that has received FDA Emergency Use Authorization (EUA) approval.




Quantabio’s UltraPlex 1-Step ToughMix Continues to Enhance CDC Protocols to Detect and Differentiate COVID-19 and Influenza Respiratory Diseases
CDC’s latest emergency use authorization for influenza SARS-CoV-2 assay validates Quantabio’s ability to multiplex up to five targets with high efficiency, sensitivity and specificity BEVERLY, M...
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Quantabio RT-qPCR ToughMix Given Expanded Role in CDC COVID-19 Testing Protocol
Amended CDC emergency use authorization recognizes UltraPlex formulation in an effective heat treatment alternative for RNA extraction BEVERLY, Mass. – July 1, 2020 – Quantabio, a leading provide...
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Product Comparisons

Determine which RT-qPCR kit is right for your research needs

qScript XLT 1-Step
RT-qPCR ToughMix
qScript 1-Step Virus ToughMix UltraPlex 1-Step ToughMix
Recommended in
CDC protocol
Formulation 2X master mix 2X master mix 4X master mix
Taq Hot Start Yes Yes Yes
RT Hot Start No Yes Yes
Chemistry 1 tube SuperMix 1 tube SuperMix 1 tube SuperMix
Performance ++++ ++++ ++++
Cycling Conditions Fast or Standard qPCR Cycling Fast or Standard qPCR Cycling Fast or Standard qPCR Cycling
Multiplex Capabilty Up to 4 targets Up to 4 targets Up to 5 targets
Sensitivity +++ ++++ ++++
Inhibitor Tolerance Yes Yes Yes