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Quick Details

  • CAS No.: 100403-24-5
  • EINECS No.: 231-791-2
  • Place of Origin: Guangdong, China (Mainland)
  • Purity: 75ng/ul
  • Classification: High Purity Reagents
  • Brand Name: DSB
  • Model Number: M1231/M1232
  • Color: Blue

Packaging & Delivery

Packaging Details Item No: M1231
Size: 50ug
Item No: M1232
Size: 5x50ug
Pack in vials

Concentration: 75ng/µl         


Recommended Loading

2-5 µl/Lane.



Typical Bands     125 ng/5µl

Other Bands      50 ng/5µl


Recommended Electrophoresis Condition

5 µl/Lane, 8 cm 1 %Agarose Gel, 1×TAE, 7V/cm,  45min.



500 ,1,000,2,500,5,000,8,000,15,000



1 year at room temperature, for long-time preservation, please storage at -20°C .



Marker 4 is ideal for determining the size of double-stranded DNA from 500 to 15,000 base pairs. The ladder consists of 6 linear double-stranded fragments .The 2,500bp fragment is present at increased intensity to allow easy identification. All fragments are precisely quantified and mixed during the production. For 5 ul loading, all fragments except 2,500bp are 50ng. The 2,500bp fragment is 125ng. This ladder is pre-mixed with loading dye and is ready to use.  



Do not heat before loading.

For quantification, adjust the concentration of the sample to equalize

it approximately with the amount of DNA in the nearest band of the ladder.

Visualize DNA by staining with ethidium bromide or with SYBR® Green I.






Dongsheng Biotech PCR Reagents are looking for distributors and providing OEM service

Dongsheng Biotech offers different series of products to help you achieve PCR success. For enzymes, our Taq Polymerase, HS Taq DNA Polymerase, FS Taq DNA Polymerase, Pfu DNA Polymerase and Fusion Pfu DNA Polymerase provide high fidelity, efficient, sensitivity PCR performance. We also have Long Taq DNA Polymerase for long PCR performance.







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