53968-62-0

Basic information

• Product Name: fluorescein-H
• CAS NO: 53968-62-0
• Molecular Weight: 331.304
• Mol File: 53968-62-0.mol
• Article Data: 5

Chemical Properties

• CAS DataBase Reference: fluorescein-H(CAS DataBase Reference)
• NIST Chemistry Reference: fluorescein-H(53968-62-0)
• EPA Substance Registry System: fluorescein-H(53968-62-0)

Safety Data

• Hazardous Substances Data: 53968-62-0(Hazardous Substances Data)

Upstream product

• 2321-07-5 fluorescein 
• 518-45-6 fluoresceine 

Downstream Products

• 2321-07-5 fluorescein 

Relevant articles and documents

Fast and ratiometric naked eye detection of hydrazine for both solid and vapour phase sensing

A new naked-eye ratiometric colorimetric and fluorometric chemodosimeter (PBF) was constructed to enable trace vapor detection of hydrazine. This probe utilizes an irreversible and fast hydrazine-promoted cleavage of the ester linkage in PBF. This probe was shown to be highly selective for hydrazine, and showed real time response as well as a positive linear relationship to hydrazine concentration. The probe also shows an excellent performance in the dip stick method.

Effect of solvent-water mixtures on the prototropic equilibria of fluorescein and on the spectral properties of the monoanion

A spectral resolution procedure was used to resolve the absorption, excitation and emission spectra of the fluorescein monoanion in a number of solvent-water mixtures. This permitted an analysis of the effect of the solvent environment on the spectral properties of the monoanion and on the lactone/monoanion/dianion transitions of fluorescein. The monoanion excitation and emission spectra show relatively small changes with changing environment, a behavior that is related to the hydrogen-bonding environment of the solvent-water mixtures. There is also a general increase in the quantum yield of the monoanion from 0.36 in water to values up to 0.49 in the solvent-water mixtures. The presence of solvent also results in a general increase in the lactone content and in the monoanion:dianion and lactone:monoanion ratios. General polarity effects alone cannot account for the observed effects on the prototropic transitions indicating that specific solute-solvent effects involving hydrogen bonding perturb the prototropic equilibria of fluorescein.

GENERATION OF HYDROGEN IN THE PHOTOCATALYTIC DECOMPOSITION OF WATER WITH THE USE OF XANTHENE DYES AS SENSITISERS

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