TRI Reagent®

for DNA, RNA and protein isolation

TRI Reagent® RNA Isolation Reagent
MDL number:


for DNA, RNA and protein isolation

Quality Level


1 mL sufficient for 107 cells
1 mL sufficient for 100 mg tissue



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General description

TRI reagent® also known as TRIzol, is a monophasic solution of phenol and guanidinium isothiocyanate. It has a potential, to simultaneously solubilize biological material and denatures protein. It is widely used for deproteinizing RNA. This improved version of the single-step total RNA isolation reagent developed by Chomczynski allows a quick, economical, and efficient isolation of total RNA from different biological samples. This product is pure (A260/A280 ~1.8) and can be directly used in Northern blotting. Simultaneous isolation of DNA, RNA and proteins is also possible. 1 mL is sufficient for the extraction of 100 mg tissue or 107 cells.


TRI Reagent® has been used for isolating RNA from various types of cells or tissues. It may also be used for processing tissues, cells cultured in monolayer, or cell pellets.
TRI Reagent is an improved version of the single-step total RNA isolation reagent developed by Chomczynski. The RNA isolation method based on this reagent is widely used and proven for RNA applications. It is ideal for quick, economical, and efficient isolation of total RNA or the simultaneous isolation of RNA, DNA, and proteins from samples of human, animal, plant, yeast, bacterial, and viral origin.

Features and Benefits

  • Easily scalable RNA isolation
  • Works with many sources: human, plant, yeast, bacterial, or viral
  • Better yields than traditional guanidine thiocyanate/cesium chloride methods

Legal Information

TRI Reagent is a registered trademark of Molecular Research Center, Inc.

Signal Word


Supp Hazards


Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves


UN 2922 6.1(8) / PGIII

WGK Germany


Flash Point(F)

174.2 °F - closed cup

Flash Point(C)

79 °C - closed cup

Certificate of Analysis

Certificate of Origin

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The availability of simple methods for purification of DNA and RNA has greatly facilitated the analysis and characterization of the genome and gene expression. There is a demand to isolate DNA and RNA rapidly and conveniently from a variety of cellular sources, including cells and tissues from mammalian, plant and bacterial cultures.
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TRI Reagent is a single-step RNA isolation reagent that allows simultaneous isolation of DNA, RNA and protein. This protocol outlines sample prep as well as extraction of the various samples and troubleshooting.
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