All Photos(1)



Reversible Protein Detection Kit for Membranes and Polyacrylamide Gels



sufficient for 20 applications staining (small 8 X 10 cm blots or PAGE gels)

Quality Level


protein staining: suitable

storage temp.



R-PROB is a unique protein detection system designed for staining of proteins on nylon, nitrocellulose, and PVDF membranes or PAGE gels with the detection sensitivity similar to that of Coomassie stains. Most other stains produce high backgrounds on nylon membranes due to strong charge interactions with the membrane. The mixing of equal amounts of Solution A and B activates the stain, which produces lavender stained protein bands. The staining is easily reversible with an EDTA solution so that the blot can be reused for Western blotting or for amino acid sequence analysis (PVDF). R-PROB does not contain the toxic chemicals cacodylic acid or potassium ferrocyanide.

Other Notes

Compatible with nylon, nitrocellulose, and PVDF membranes as well as polyacrylamide gels.

Kit Components Only

Product No.

  • Solution A 500 mL

  • Solution B 500 mL


Exclamation mark

Signal Word


Hazard Statements

Precautionary Statements

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2

Storage Class Code

12 - Non Combustible Liquids

Certificate of Analysis

Enter Lot Number to search for Certificate of Analysis (COA).

Certificate of Origin

Enter Lot Number to search for Certificate of Origin (COO).

Product Information Sheet

Quotes and Ordering

  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 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.

  4. 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. 

  5. When using Product RPROB, Reversible Protein Detection Kit, to stain protein on PAGE gels, can the protein be transferred from the gel to a membrane after destaining?

    Proteins cannot be transferred to a membrane after being stained and de-stained with the Product RPROB, Reversible Protein Detection Kit. 

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

    Ask a Scientist here.

Sensitivity and mass accuracy for proteins analyzed directly from polyacrylamide gels: Implications for proteome mapping
Rachel R.
Electrophoresis (1997)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service