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Helixyte™ Green dsDNA Quantifying Reagent
200X DMSO Solution
Helixyte™ Green is an excellent nucleic acid sensor that exhibits large fluorescence enhancement upon binding to dsDNA. It has the same spectral properties to those of PicoGreen®, thus a great replacement to PicoGreen® (PicoGreen® is the trademark of Invitrogen). The most commonly used technique for measuring nucleic acid concentration is the determination of absorbance at 260 nm (A260). However, the absorbance method suffers great interferences resulted from various contaminants commonly found in nucleic acid preparations, including nucleotides, single-stranded nucleic acids and proteins. Helixyte™ Green dsDNA Quantifying Reagent is an excellent alternative for quantifying DNAs with greatly improved sensitivity and selectivity. Helixyte™ Green dsDNA Quantifying Reagent is an ultra-sensitive fluorescent nucleic acid stain for quantitating double-stranded DNA (dsDNA) in molecular biological procedures such as cDNA synthesis for library production and DNA fragment purification for subcloning, as well as diagnostic applications, such as quantitating DNA amplification products and primer extension assays. Using the Helixyte™ Green dsDNA Quantifying Reagent, you can selectively detect as little as 25 pg/ml of dsDNA in the presence of ssDNA, RNA, and free nucleotides. The assay is linear over three orders of magnitude and has little sequence dependence, allowing you to accurately measure DNA from many sources, including genomic DNA, viral DNA, miniprep DNA, or PCR amplification products. Helixyte™ Green dsDNA Quantifying Reagent has a few orders of magnitude more sensitive than the UV absorbance readings, saving on precious sample. It is specific for dsDNA in the presence of equimolar amounts of RNA.
Comparison of calf thymus DNA dose response with Helixyte Green™ (blue circle) and PicoGreen® (red square) in a solid black 96-well microplate using a Gemini fluorescence microplate reader.
Comparison of calf thymus DNA dose response with Helixyte Green™ (blue circle) and PicoGreen® (red square) in a solid black 96-well microplate using a Gemini fluorescence microplate reader.
CatalogSize
Price
Quantity
175971 ml
Price
1759810 ml
Price
 
Physical properties

Molecular weight661.17
SolventDMSO
Spectral properties

Excitation (nm)502
Emission (nm)522
Storage, safety and handling

Certificate of OriginDownload PDF
H-phraseH303, H313, H340
Hazard symbolT
Intended useResearch Use Only (RUO)
R-phraseR20, R21, R68
StorageFreeze (< -15 °C); Minimize light exposure
UNSPSC41116134
Instrument settings

Fluorescence microplate reader
Excitation490
Emission525
Cutoff515
Recommended plateSolid black
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Page updated on September 25, 2025