Date published: 2026-4-21

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Fast Sulphon Black F (CAS 3682-47-1)

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Alternate Names:
ACID BLACK 32; 4-Hydroxy-5-[(2-hydroxy-1-naphtyl)azo]-3-[(4-sulfo-1-naphtyl)azo]-2,7-naphthalenedisulfonic acid trisodium salt
Application:
Fast Sulphon Black F is a complexometric indicator, used for titrations
CAS Number:
3682-47-1
Purity:
≥95%
Molecular Weight:
774.64
Molecular Formula:
C30H17N4O11S33Na
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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Fast Sulphon Black F (FSB F) is a synthetic dye belonging to the azo dye family and finds extensive applications in scientific research. It possesses the remarkable ability to interact with proteins, DNA, and other macromolecules, making it highly valuable in biological and biochemical studies. Fast Sulphon Black F serves as a fluorescent dye in fluorescence microscopy, absorbing light and emitting it at longer wavelengths. Moreover, it plays a role in immunohistochemistry by binding to specific proteins, resulting in a visible color change. This color change serves as a means to identify the presence of targeted proteins within a sample.


Fast Sulphon Black F (CAS 3682-47-1) References

  1. Structures, metal ion affinities, and fluorescence properties of soluble derivatives of tris((6-phenyl-2-pyridyl)methyl)amine.  |  Liang, J., et al. 2009. Inorg Chem. 48: 11196-208. PMID: 19877674

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Fast Sulphon Black F, 25 g

sc-294588
25 g
$57.00

Fast Sulphon Black F, 100 g

sc-294588A
100 g
$118.00