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Helixyte™ Green dsDNA Quantifying Reagent *200X DMSO Solution*

Ordering information
Price ()
Catalog Number17597
Unit Size
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Additional ordering information
InternationalSee distributors
ShippingStandard overnight for United States, inquire for international
Physical properties
Molecular weight661.17
Spectral properties
Excitation (nm)502
Emission (nm)522
Storage, safety and handling
H-phraseH303, H313, H340
Hazard symbolT
Intended useResearch Use Only (RUO)
R-phraseR20, R21, R68
StorageFreeze (< -15 °C); Minimize light exposure


Molecular weight
Excitation (nm)
Emission (nm)
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.


Fluorescence microplate reader

Excitation490 nm
Emission525 nm
Cutoff515 nm
Recommended plateSolid black


Common stock solution preparation

Table 1. Volume of DMSO needed to reconstitute specific mass of Helixyte™ Green dsDNA Quantifying Reagent *200X DMSO Solution* to given concentration. Note that volume is only for preparing stock solution. Refer to sample experimental protocol for appropriate experimental/physiological buffers.

0.1 mg0.5 mg1 mg5 mg10 mg
1 mM151.247 µL756.235 µL1.512 mL7.562 mL15.125 mL
5 mM30.249 µL151.247 µL302.494 µL1.512 mL3.025 mL
10 mM15.125 µL75.624 µL151.247 µL756.235 µL1.512 mL

Molarity calculator

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Spectral properties

Excitation (nm)502
Emission (nm)522


View all 2 citations: Citation Explorer
Faecal DNA metabarcoding reveals novel bacterial community patterns of critically endangered Southern River Terrapin, Batagur affinis
Authors: Salleh, Mohd Hairul Mohd and Esa, Yuzine and Ngalimat, Mohamad Syazwan and Chen, Pelf Nyok
Journal: PeerJ (2022): e12970
Archaeal and methanogenic communities in the rice field under different fertilizer applications
Authors: Fatma, Yuli and RUSMANA, IMAN and WAHYUDI, ARIS TRI and others,
Journal: Biodiversitas Journal of Biological Diversity (2019)


View all 31 references: Citation Explorer
Inhibitors of Streptococcus pneumoniae surface endonuclease EndA discovered by high-throughput screening using a PicoGreen fluorescence assay
Authors: Peterson EJ, Kireev D, Moon AF, Midon M, Janzen WP, Pingoud A, Pedersen LC, Singleton SF.
Journal: J Biomol Screen (2013): 247
Validation of a PicoGreen-based DNA quantification integrated in an RNA extraction method for two-dimensional and three-dimensional cell cultures
Authors: Chen Y, Sonnaert M, Roberts SJ, Luyten FP, Schrooten J.
Journal: Tissue Eng Part C Methods (2012): 444
Characterization of PicoGreen interaction with dsDNA and the origin of its fluorescence enhancement upon binding
Authors: Dragan AI, Casas-Finet JR, Bishop ES, Strouse RJ, Schenerman MA, Geddes CD.
Journal: Biophys J (2010): 3010
Comparison of SYBR Green I-, PicoGreen-, and [3H]-hypoxanthine-based assays for in vitro antimalarial screening of plants from Nigerian ethnomedicine
Authors: Abiodun OO, Gbotosho GO, Ajaiyeoba EO, Happi CT, Hofer S, Wittlin S, Sowunmi A, Brun R, Oduola AM.
Journal: Parasitol Res (2010): 933
Metal-enhanced PicoGreen fluorescence: application to fast and ultra-sensitive pg/ml DNA quantitation
Authors: Dragan AI, Bishop ES, Casas-Finet JR, Strouse RJ, Schenerman MA, Geddes CD.
Journal: J Immunol Methods (2010): 95
Quantification of dsDNA using the Hitachi F-7000 Fluorescence Spectrophotometer and PicoGreen dye
Authors: Moreno LA, Cox KL.
Journal: J Vis Exp. (2010)
Factors affecting quantification of total DNA by UV spectroscopy and PicoGreen fluorescence
Authors: Holden MJ, Haynes RJ, Rabb SA, Satija N, Yang K, Blasic JR, Jr.
Journal: J Agric Food Chem (2009): 7221
Development and characterization of a novel host cell DNA assay using ultra-sensitive fluorescent nucleic acid stain "PicoGreen"
Authors: Ikeda Y, Iwakiri S, Yoshimori T.
Journal: J Pharm Biomed Anal (2009): 997
Enhanced DNA dynamics due to cationic reagents, topological states of dsDNA and high mobility group box 1 as probed by PicoGreen
Authors: Noothi SK, Kombrabail M, Kundu TK, Krishnamoorthy G, Rao BJ.
Journal: FEBS J (2009): 541
Label-free DNA sequence detection with enhanced sensitivity and selectivity using cationic conjugated polymers and PicoGreen
Authors: Ren X, Xu QH.
Journal: Langmuir (2009): 43