Date published: 2026-4-6

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Sulforhodamine B sodium salt (CAS 3520-42-1)

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Alternate Names:
Sulforhodamine B sodium salt is also known as Acid Red 52.
Application:
Sulforhodamine B sodium salt is a fluorescent rhodamine dye, widely used in nonpermanent tattoos and potentially as a new therapeutic agent.
CAS Number:
3520-42-1
Molecular Weight:
580.65
Molecular Formula:
C27H29N2O7S2•Na
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.

QUICK LINKS

Sulforhodamine B sodium salt is a fluorescent rhodamine dye which can be used to quantify cellular proteins in cultured cells. Sulforhodamine B sodium salt can be used to determine the quantification of cellular proteins of cultured cells by using the spanning from laser-induced fluorescence (LIF). In vitro, Sulforhodamine B sodium salt is often used as a membrane-impermeable polar tracer. Sulforhodamine B sodium salt binds stoichiometrically to proteins under mild acidic conditions and then can be extracted using basic conditions.

For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.

Alexa Fluor® is a trademark of Molecular Probes Inc., OR., USA

LI-COR® and Odyssey® are registered trademarks of LI-COR Biosciences


Sulforhodamine B sodium salt (CAS 3520-42-1) References

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  8. Calcium-Responsive Liposomes via a Synthetic Lipid Switch.  |  Lou, J., et al. 2018. Chemistry. 24: 3599-3607. PMID: 29323763
  9. Influenza Virus-Liposome Fusion Studies Using Fluorescence Dequenching and Cryo-electron Tomography.  |  Gui, L. and Lee, KK. 2018. Methods Mol Biol. 1836: 261-279. PMID: 30151578
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Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

Sulforhodamine B sodium salt, 1 g

sc-253615
1 g
$60.00

Sulforhodamine B sodium salt, 5 g

sc-253615A
5 g
$112.00

Sulforhodamine B sodium salt, 25 g

sc-253615B
25 g
$318.00