Molecule

02101709 

Dark Red (for synthesis of Fluorescein Isothiocyanate)

05209359 

MP Biomedicals Rare Chemical collection

201626 

Packaging
1, 5 g in glass bottle
250 mg in glass bottle

07980 

Application
The two isomers are produced by the usual synthesis. Most publications imply they are interchangeable when used for the preparation of the isothiocyanate for fluorescent antibody work. In fact, most commercial preparations are not even labeled as to whether or not they are mixtures.
Other Notes
All known glycosaminoglycuronans react with this fluorescein derivative to yield fluorescent derivatives1
Note: Do not confuse with fluorescamine.

F485300 

Fluorescent labeling reagent for proteins. Used in the fluorescent antibody technique for rapid identification of pathogens.

CHEBI:91078 

A primary amino compound that is fluorescein carrying an amino substituent at C-5. Building block/intermediate for the synthesis of the fluorescent dye flourescein; also used to produce N-(fluorescein-5-yl)maleamic acid.