Ponceau S, Protein dye (ab146313)
Key features and details
- Rapid, reversible protein dye for nitrocellulose, PVDF and cellulose acetate membranes.
- CAS Number: 6226-79-5
- Soluble in water
- Form / State: Solid
- Source: Synthetic
Overview
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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
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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.)
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CAS Number
6226-79-5 -
Chemical structure
Properties
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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.
Refer to SDS for further information
Need more advice on solubility, usage and handling? Please visit our frequently asked questions (FAQ) page for more details.
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Source
Synthetic
