Brilliant Blue G - Colloidal Concentrate

Pricing and availability is not currently available.



storage temp.

room temp

General description

Coomassie Brilliant Blue stain is widely used for the detection of proteins in sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS PAGE). Staining with brilliant blue G is called as blue silver staining due to its improved sensitivity close to silver staining method. Coomassie Brilliant Blue G stain associates with proteins via hydrophobic interaction. It is effective in staining anterior capsule in cornea with relatively less toxic effects.


Brilliant Blue G - Colloidal Concentrate has been used in the staining
  • protein fragments post in vitro pepsin digestion
  • ovarian tumor fluid proteome prior to profiling
  • the transcription factor (TFIID) complex from Saccharomyces cerevisiae


1 ea in poly bottle


The suspension will contain 0.1% (w/v) Brilliant Blue G, 0.29 M phosphoric acid and 16% saturated ammonium sulfate after diluting to 1 liter with 800 mL water.

Analysis Note

This product has been tested for suitability on SDS-PAGE.



Signal Word


Hazard Statements

Precautionary Statements

Hazard Codes


Risk Statement


Safety Statement



UN 1805 8 / PGIII

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis
Certificate of Origin
  1. Which document(s) contains shelf-life or expiration date information for a given product?

    If available for a given product, the recommended re-test date or the expiration date can be found on the Certificate of Analysis.

  2. How do I get lot-specific information or a Certificate of Analysis?

    The lot specific COA document can be found by entering the lot number above under the "Documents" section.

  3. How would you recommend that I reconstitute Product B2025, Brilliant Blue G?

    One bottle of the product makes 1 liter of working solution.  The suspension will contain 0.1% (w/v) Brilliant Blue G, 0.29 M phosphoric acid and 16% saturated ammonium sulfate after diluting to 1 Liter with 800 mL water.

  4. What is the solution stability of Product B2025, Brilliant Blue G?

    Once diluted the solution should be stable indefinitely.  It should be stored in the refrigerator and shaken well before each use.  The solution tends to precipitate on standing and heat accelerates precipitation.  Therefore, do not leave the bottle at room temperature overnight.

  5. Can you use Product B2025, Brilliant Blue G, with nitrocellulose?

    Use with nitrocellulose is not recommended, due to the methanol.

  6. How is Product B2025, Brilliant Blue G, better than other Coomassie Blue dyes?

    The major advantage of the colloidal form is that it gives less background staining that the "regular" non-colloidal Coomassie Brilliant Blue G and Brilliant Blue R stains. Sensitivity can be markedly increased by double staining, first with Coomassie Brilliant Blue G Colloidal, then Rapid Silver Stain.

  7. What is the detection limit of Product B2025, Brilliant Blue G?

    The detection limit for proteins is about 50 ng of protein. However, proteins pick up stains differently so this is a general description and may not apply to all proteins

  8. How do I find price and availability?

    There are several ways to find pricing and availability for our products. Once you log onto our website, you will find the price and availability displayed on the product detail page. You can contact any of our Customer Sales and Service offices to receive a quote.  USA customers:  1-800-325-3010 or view local office numbers.

  9. What is the Department of Transportation shipping information for this product?

    Transportation information can be found in Section 14 of the product's (M)SDS.To access the shipping information for this material, use the link on the product detail page for the product. 

  10. My question is not addressed here, how can I contact Technical Service for assistance?

    Ask a Scientist here.

A proteomic signature of ovarian cancer tumor fluid identified by highthroughput and verified by targeted proteomics
Poersch A, et al.
Journal of proteomics, 145(2), 226-236 (2016)
Staining ability and biocompatibility of brilliant blue G: preclinical study of brilliant blue G as an adjunct for capsular staining
Hisatomi T, et al.
Archives of Ophthalmology, 124(4), 514-519 (2006)
V Neuhoff et al.
Electrophoresis, 9(6), 255-262 (1988-06-01)
An improved procedure for staining of proteins following separation in polyacrylamide gels is described which utilizes the colloidal properties of Coomassie Brilliant Blue G-250 and R-250. The new method is based on addition of 20% v/v methanol and higher concentrations...
Xinyi Sun et al.
Molecular medicine reports, 19(1), 685-692 (2018-11-16)
The aim of the present study was to investigate the potential role of long non‑coding RNA Fer‑1‑like family member 4 (FER1L4) in the proliferation of hepatocellular carcinoma (HCC) through the regulation of phosphatase and tensin homolog (PTEN) expression. Reverse transcription‑quantitative...
Blue silver: a very sensitive colloidal Coomassie G-250 staining for proteome analysis
Candiano G, et al.
Electrophoresis, 25(9), 1327-1333 (2004)
Brilliant Blue G-Colloidal Concentrate has been designed for post-electrophoresis staining of proteins in IEF, PAGE, and SDS-PAGE gels. Fixing the proteins prior to staining is recommended for maximum sensitivity.
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