Overview

  • Product name

    Ponceau S, Protein dye
  • Description

    Rapid, reversible protein dye for nitrocellulose, PVDF and cellulose acetate membranes.
  • Alternative names

    • 3-Hydroxy-4-(2-sulfo-4-[4-sulfophenylazo]phenylazo)-2,7-naphthalenedisulfonic acid sodium salt
    • Acid Red 112
    • C.I. 27195
  • Biological description

    Protein dye for the rapid, reversible staining of protein bands on nitrocellulose, PVDF and cellulose acetate membranes. Staining is reversible allowing further immunological detection. Negative stain which binds to the positively charged amino groups of the protein. Also binds non-covalently to non-polar regions in the protein.


    (Note: Ponceau S is not suitable for use with nylon membranes.)

  • CAS Number

    6226-79-5
  • Chemical structure

    Chemical Structure

Properties

  • Chemical name

    3-Hydroxy-4-[[2-sulfo-4-[(4-sulfophenyl)azo]phenyl]azo]-2,7-naphthalenedisulfonic acid tetrasodium salt
  • Molecular weight

    760.61
  • Molecular formula

    C22H12N4Na4O13S4
  • Storage instructions

    Store at Room Temperature. The product can be stored for up to 12 months.
  • Solubility overview

    Soluble in water
  • Handling

    Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20°C. Generally, these will be useable for up to one month. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.

    Need more advice on solubility, usage and handling? Please visit our frequently asked questions (FAQ) page for more details.

  • Source

    Synthetic

References

This product has been referenced in:

Customer reviews and Q&As

There are currently no Customer reviews or Questions for ab146313.
Please use the links above to contact us or submit feedback about this product.

Please note: All products are "FOR RESEARCH USE ONLY. NOT FOR USE IN DIAGNOSTIC PROCEDURES, NOT FOR USE IN HUMANS"
For licensing inquiries, please contact partnerships@abcam.com

Sign up