Molecular Weight: 513.78

Storage: F, D

Soluble: H₂O, DMSO

Emission: (in nm) 510

Molecular Formula: C₁₆H₇Cl₃O₇S₃

Unit Price (USD): 10 mg $108.24

Bulk Price/unit (when you buy 5 or more): $86.59

Description:
This pyrene derivative is useful for labeling amine groups of proteins, peptides or other compounds (drugs), and has unusual pH dependent fluorescence properties and pKa changes, after conjugation. 8-hydroxy-1,3,6-trisulfonate-pyrene (HPTS) is often called a "photoacid" because it can be transformed by light from a weak acid into a strong acid.

References:

• "Real-Time Observation of Bimodal Proton Transfer in Acid-Base Pairs in Water" (2003) Matteo Rini, Ben-Zion Magnes, Ehud Pines, Erik T. J. Nibbering Science 301(5631): 349-352.
• L. T. Genosar, B. Cohen, D. Huppert, J. Phys. Chem. A 104, 6689 (2000).
• E. Pines, B.-Z. Magnes, M. J. Lang, G. R. Fleming, Chem. Phys. Lett. 281, 413 (1997).
• E. Pines, D. Huppert, N. Agmon, J. Chem. Phys. 88, 5620 (1988).