Sulforhodamine 101 acid chloride

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Cat.No. 5442 - Sulforhodamine 101 acid chloride | C31H29ClN2O6S2 | CAS No. 82354-19-6
Description: Red fluorescent dye; amine reactive
Alternative Names: Texas Red
Chemical Name: 9-[4-(Chlorosulfonyl)-2-sulfophenyl]-2,3,6,7,12,13,16,17-octahydro-1H,5H,11H,15H-xantheno[2,3,4-ij:5,6,7-i'j']diquinolizin-18-ium, inner salt

Biological Activity

Red fluorescent dye for the labeling of amines. Excitation maximum ~ 588 nm; emission maximum ~ 601 nm. Sulforhodamine 101 (Cat. No. 5146) also available.

Technical Data

M. Wt 625.15
Formula C31H29ClN2O6S2
Storage Store at -20°C
CAS Number 82354-19-6
PubChem ID 452705
Smiles O=S(C1=CC(S(=O)(Cl)=O)=CC=C1C2=C(C=C3C4=C5CCCN4CCC3)C5=[O+]C6=C(CCCN7CCC8)C7=C8C=C62)([O-])=O

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.

Tocris products are intended for laboratory research use only, unless stated otherwise.

Solubility Data

Solvent Max Conc. mg/mL Max Conc. mM
ethanol 62.51 100

Preparing Stock Solutions

The following data is based on the product molecular weight 625.15. Batch specific molecular weights may vary from batch to batch due to solvent of hydration, which will affect the solvent volumes required to prepare stock solutions.

Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
1 mM 1.6 mL 8 mL 16 mL
5 mM 0.32 mL 1.6 mL 3.2 mL
10 mM 0.16 mL 0.8 mL 1.6 mL
50 mM 0.03 mL 0.16 mL 0.32 mL

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References are publications that support the biological activity of the product.

Schneider et al (2013) Selective detection of allosteric phosphatase inhibitors. J.Am.Chem.Soc. 135 6838 PMID: 23611635

If you know of a relevant reference for Sulforhodamine 101 acid chloride, please let us know.

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