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We ensure careful final inspection independently on manufacturing. The products come with quality certificates, which are available in electronic form... 

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Certificate ISO PDF

We possess ISO 9001:2008 certificate: “Manufacturing high quality reagents...

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Firm’s testimony

  • Production of reagents of the highest quality
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Materials for testing of RNA coronavirus, causing

DNase I (RNase-free)


DNase I (RNase-free) is a preparation of deoxyribonuclease I that degrades single-stranded or double-stranded DNA to produce 3´-hydroxyl oligonucleotides. This preparation is qualified for use in applications where maintaining the integrity of RNA is critical. DNase I (RNase-free) is used for removal ot DNA from RNA preparation (e.g. in RT PCR procedures and differential display libraries), DNase "footprinting", mapping of DNase sensitive regions, plasmid constructions, radioactive labeling using nick translations and other applications.

Technical data

Enzyme concentration

  • DNase I, RNase-free is supplied at a concentration 10 000 U/ml.

 Components and packaging

  • 1 test tube with DNase I (RNase-free), 5 000 U/500 µl.
  • 1 test tube with 5x concentrated react buffer, 1 ml.

 Unit definition

  • One unit DNase I (RNase-free) is defined as amount of the enzyme, which degrades 1 μg of DNA in 10 min at 37oC in 20 μl of react buffer: 20 mM Tris-HCl, pH 7.6, 20 mM NaCl, 12 mM MgCl2 and 4 mM CaCl2.


  • At temperature -20oC ± 5°C. Material can be repeatedly defrosted.


  • React buffer (5x): 100 mM Tris-HCl (pH 7.6 at 20oC), 100 mM NaCl, 60 mM MgCl2, 20 mM CaCl2.
  • Storage buffer: 10 mM Tris-HCl (pH 7.6 at 20oC), 10 mM NaCl, 6 mM MgCl2, 2 mM CaCl2, 50% (vol/vol) glycerol.

 Quaility control

  • Under conditions completely degrading DNA, the enzyme has no effect on RNA.


Cat. No. Product name and specification Amount Price
D061 DNase I (RNase-free) 5000 U 66.67 EUR