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+44 1509 558163.

BioStatus HQ

You can contact us directly at:

BioStatus Limited
56A Charnwood Road
Shepshed
Leicestershire
LE12 9NP
United Kingdom

Tel: +44 1509 558 163
Fax: +44 1509 651 061

Email: enquiry@biostatus.com

Company No 3079239
VAT# GB 755 5893 80

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DRAQ7™

DRAQ7™ is a new far-red fluorescent DNA dye that ONLY stains the nuclei in DEAD and permeabilized cells.

DRAQ7™ has many applications in imaging, cytometry and screening and is highly compatible with existing protocols across a wide range of instrumentation platforms.

CLICK HERE to view applications suitable for DRAQ7™

DRAQ7™ is available in two concentrations: 0.3mM and 1mM. The 0.3mM Packs come in two sizes; 250μl and 1ml. The 1mM Pack comes in one size - 1ml - and is meant for higher volume applications. Please get in touch if you would like to order bulk volumes of DRAQ7™. You can order DRAQ7™ directly from this website - see below:

SKU DESCRIPTION PRICE QTY
  • DR70250
  • DRAQ7™ (0.3mM)
    Starter Pack
    1x 250µl
    50 Flow Cytometry Assays
    250 Cell Health Assays

  • Price: £75.00 (Excl. VAT)
  •  
  • DR71000
  • DRAQ7™ (0.3mM)
    Regular Pack
    1x 1ml
    200 Flow Cytometry Assays
    1000 Cell Health Assays

  • Price: £150.00 (Excl. VAT)
  •  
  • DR710HC
  • DRAQ7™ (1.0mM)
    Volume Pack
    5x 1ml
    5x 3300 Cell Health Assays

  • Price: £1,350.00 (Excl. VAT)
  •  

Product Reviews

What our customers are saying about DRAQ7™

 This has enabled us to do experiments that were not otherwise possible before. Not only is it a much cleaner signal than other viability dyes, but the fact that it is non-toxic has enabled us to do time courses with the same samples.

We have performed 3D spheroid experiments over a 4-week period, reading plates every 72 hours with zero toxicity! It therefore saves us large amounts of money that would have been spent on ending experiments at each time point using toxic dyes.

Highly recommended!  

Dr. Gareth Griffiths
Imagen Biotech

The Science

  • DRAQ7™ is a small molecule closely related to DRAQ5™. It has peak absorbances at 600nm and 646nm. It fluoresces in the far-red / near infra-red (NIR) peaking at 697nm (bound to dsDNA). On a flow cytometer it is possible to detect DRAQ7™ using blue laser (488nm) excitation.

  • Multi-wavelength imaging with UV / vis fluorochromes:

  • NO fluorescence enhancement upon DNA binding
  • low photobleaching effect
  • compatible with optics of flow, laser scanning cytometers and confocal and lamp-based fluorescence microscopes

Why DRAQ7™?

DRAQ7™ is an ideal far-red DNA counterstain for IF/IHC, high content screening and cell-based assays. DRAQ7™ has many applications and is highly compatible with existing protocols across a wide range of instrumentation platforms. Key benefits include:-

  • does NOT enter intact, live cells
  • it is excited by blue through red lasers
  • DRAQ7™ is NON-TOXIC in long-term culture
  • an ideal replacement for propidium iodide (and 7-AAD) having far better spectral properties: no UV excitation and no emission overlap with PE and homologues
  • allows a new design of combination analysis for cell health and status
  • viability/integrity can be directly interchanged with DRAQ5™ (DNA content)
  • rapid staining of dsDNA/nuclei of DEAD or permeabilised cells
  • combination with live cell dyes for dead/live discrimination
  • easy to use - no wash, no RNase needed
  • deal for use with GFP & FITC labels - DRAQ7™ fluoresces in the far-red region
  • Cost-effective analysis

Technical Information

  • DRAQ7™ is supplied as a blue aqueous solution in two concentrations: 0.3mM and 1.0mM.
  • Products are shipped at ambient temperature, but on receipt packs should be stored at 2-8°C. Do NOT freeze!
  • DRAQ7™ can be diluted in culture media (e.g. RPMI 1640) and physiological buffers (eg PBS, Hanks’s, etc.) and mixed with fixatives such as formaldehyde.

You can find much more technical information in the folders below:-

KEY REFERENCES

Search Online:


There are many useful independent references for DRAQ7™ online. We have listed some popular papers in the link below for your convenience:

DRAQ7™ Popular References (PDF)

Alternatively you can use the Google Scholar facility below to find exactly what you are looking for. Just type other keywords alongside the product name - such as cell type, instrumentation, research area - in the search box below and Google Scholar will find all of the relevant references online!

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SAFETY DATA SHEET

DRAQ7™ SDS


You can view, share and download a country specific Safety Data Sheet (PDF) in your language by clicking the relevant flag below:-

Hover over the flags to reveal the Country and Language:-

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CUSTOMER REVIEWS

DRAQ7™ - Reviews


What our Customers are saying about DRAQ7™:-

  • "This has enabled us to do experiments that were not otherwise possible before. Not only is it a much cleaner signal than other viability dyes, but the fact that it is non-toxic has enabled us to do time courses with the same samples. We have performed 3D spheroid experiments over a 4-week period, reading plates every 72 hours with zero toxicity! It therefore saves us large amounts of money that would have been spent on ending experiments at each time point using toxic dyes. Highly recommended!
    Dr. Gareth Griffiths, Imagen Biotech