Molecular Weight: 351.46

Storage: C, D, L

Soluble: DMSO, DMF, H₂O

Absorption: (in nm) 318

Emission: (in nm) 443

Extinction (10³): 26

Molecular Formula: C₁₇H₁₄NSO₃K

CAS Number: [32752-10-6]

Unit Price (USD): 100 mg $21.75

Bulk Price/unit (when you buy 5 or more): $17.40

Description:
Fluorescent probe for conformational studies and for use in quantitation of proteins. This potassium salt is more water soluble than the free acid, (Product M0704).

Note:
Ex=318nm

References:

• "Fluorescent Probes for Conformational States of Proteins. I. Mechanism of Fluorescence of 2-p-Toluidinylnaphthalene-6-sulfonate, a Hydrophobic Probe" McClure, W.O., Edelman, G.M. Biochemistry 5(6) (1966) 1908-1919.
• "Determination of depolymerization kinetics of amylose, amylopectin, and soluble starch by aspergillus oryzae alpha-amylase using a fluorimetric 2-p-toluidinylnaphthalene-6-sulfonate/flow-injection analysis system." Batlle N, Carbonell JV, Sendra JM. Biotechnol Bioeng 70 (2000) 544-552.
• "Kinetics and Equilibrium Binding of the Dyes TNS and RH 421 to Ribulose 1,5-Bisphosphate Carboxylase/Oxygenase (RUBISCO)." Frank J, et al. J. Chem. Soc. Faraday Trans. 93 (1997) 2379.
• "Use of 6-p-Toluidino-2-Naphthalenesulfonic Acid to Quantitate Lipids After Thin-Layer Chromatography." Jones M, Keenan RW, Horowitz P. J. Chromatogr. 237 (1982) 522.
• "pH-Induced conformational changes in Clostridium difficile toxin B." QaDan M, Spyres LM, Ballard JD. Infect. Immun. 68 (2000) 2470-2474.