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Invitrogen™ TRI Reagent™ Solution Non-distribution product as customer accommodation. Available on GSA/VA Contract for Federal Government customers only.

Isolate DNA, RNA and protein with a single reagent

Manufacturer:  Invitrogen™ AM9738

Catalog No. AM9738

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Tri Reagent™ solution is a complete, ready-to-use reagent for the isolation of total RNA or the simultaneous isolation of RNA, DNA, and protein from a variety of biological samples.
Using TRI Reagent solution TRI Reagent starting material can be either fresh or frozen tissue, or cell samples of almost any size—the protocol is easily scalable. This RNA isolation method is well-recognized and referenced in numerous publications, a testament to its reliability.
How it works TRI Reagent combines phenol and guanidine thiocyanate in a monophase solution to facilitate the immediate inhibition of RNase activity. Biological samples are homogenized or lysed in TRI Reagent; the subsequent addition of bromochloropropane or chloroform results in the separation of the homogenate into aqueous and organic phases. RNA partitions to the aqueous phase, DNA to the interphase, and proteins to the organic phase. The RNA can then be precipitated from the aqueous phase with the addition of isopropanol. The entire protocol can be completed in approximately 1 hour.
Applications The isolated RNA is suitable for any downstream application, including RT-PCR, amplification for array analysis, hybridization assays, or in vitro translation. PCR, Southern blotting, and cloning can be performed using DNA isolated with TRI Reagent. Isolated proteins can be used in SDS-PAGE and western blotting.
Tri Reagent solution is incorporated into our RiboPure and MagMAX-96 for Microarrays RNA isolation kits.

  • Simple: a single reagent for isolation of DNA-free RNA, RNA-free DNA, and protein
  • Productive: obtain higher yields than with traditional guanidine thiocyanate or cesium chloride methods
  • Versatile: works with many sample sources, including human, plant, yeast, bacterial and viral samples
  • Flexible: easily scalable depending on starting material and desired yield

Not high-throughput compatible (Manual)

DNA and RNA Purification and Analysis, RNA Extraction, Total RNA Isolation, Total RNA from Animal Cells and Tissues, Total RNA from Bacterial Samples, Total RNA from Blood, Total RNA from FFPE Samples, Total RNA from Plant Cells, Total RNA from Yeast

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Shipping Condition: Room temperature



Genomic DNA, Total RNA, Protein
Total RNA, Genomic DNA, RNA & Protein
Organic Extraction
Not High-throughput Compatible (Manual)
TRI Reagent®
Microarray Analysis, Real-Time Quantitative PCR (qPCR), Cloning, Southern Blotting, Nuclease Protection Assays, PCR, In Vitro Translation, Northern Blotting
Plant Samples, Viral Samples, Yeast, Buccal Samples, Cells, Tissue, Bacteria, Fungi, Blood
Store TRI Reagent® solution at 4°C.
1 hr
Room Temperature
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For Research Use Only. Not for use in diagnostic procedures.