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Quick Details

  • Place of Origin: Beijing, China (Mainland)
  • Brand Name: Solarbio
  • Model Number: PR1920
  • PR1920-100: 100ul(20T)
  • PR1920-20: 250ul(50T)
  • PR1920-50: 10*250UL(500T)
  • PR1920-500: 2*250ul(100T)

Packaging & Delivery

Packaging Details 100ul(20T) , 250ul(50T) , 10*250UL(500T) , 2*250ul(100T)
Delivery Time Shipped in 7 days after payment

Prestained Protein Marker (11-245kD)


Cat No.: PR1920

Package: 20T (100μl)/50T(250μl) /100T(250μl×2) /500T(250μl×10)

Storage: at -20℃ for two years.

Product Description

The ColorMixed Prestained Protein Marker(11-245kD) is a three-color protein standard with 12 pre-stained proteins covering a wide range molecular weights for 11 to 245 kDa. Proteins are covalently coupled with a blue chromophore except for two reference bands (one green and one red band at 25 kDa and 75 kDa respectively) when separated on  SDS-PAGE(Tris-glycine buffer). The Multicolor Protein Marker(11-180kD) is designed for monitoring protein separated during SDS polyacrylamide gel electrophoresis, verification of Western transfer efficiency on membranes (PVDF, nylon or nitrocellulose) and for approximate sizing of proteins. The ladder is supplied in gel loading buffer and is ready to use format without heating and reductant.

Quality Control

5μl of ColorMixed Prestained Protein Marker(11-245kD) resolves 12 bands in 4-20% SDS-PAGE (Tris-glycine buffer) and after Western blotting to PVDF membrane.

Recommendations for Loading

• 3μl or 5μl per loading for clear visualization during electrophoresis on 15-well or 10-well mini-gel, respectively

• 2~3μl per well for general Western transfer.

• Apply more for thicker (>1.5 mm) or larger gel.

Guide for Molecular Weight Estimation (kDa)

Migration pattern of ColorMixed Prestained Protein Marker(11-245kD) in SDS-PAGE (Tris-glycine buffer) is listed below:





Company Information

About US

Founded in 2004, Beijing Solarbio Science & Technology Co., Ltd. is an academic high-tech biological enterprise committed to providing high quality products and services  for our esteemed customers.

The company has 1,200 square metres  of research and production center, 2000 square metres of storage base and equipped with advanced logistics system. Our technical team consist of dozens of PhD and master staff members  focusing on improving and innovating our products and hired a number of well-known experts as technical advisers. With strict GMP and ISO 9000 standards for production and management, we are committed to provide users with the best reagents, the most professional products and the most perfected solutions, aiming to build a world-class national brand.

Solarbio is a professional manufacturer specialized in research, development, manufacture and marketing. The products involve molecular biology, cell biology, immunology, biomedical and other relevant areas. As one of the leading suppliers of life science research reagents in China, the company has branches or agents in more than 30 provinces. Our company exports products to American, Japan and other developed countries in Europe. Through the Alibaba international website Solarbio has been widely recognized in the international market.

We are determined to take an independent brand strategy. Meanwhile, we look forward to further cooperation with more scientific research institutes and make efforts for the development of human life science research to achieve mutual benefit and win-win results.



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China (Mainland) | Manufacturer, Trading Company
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