![cover image](https://wikiwandv2-19431.kxcdn.com/_next/image?url=https://upload.wikimedia.org/wikipedia/commons/thumb/d/d3/Fluorescein-sample.jpg/640px-Fluorescein-sample.jpg&w=640&q=50)
Fluorestseiin
From Wikipedia, the free encyclopedia
Fluorestseiin (keemilise valemiga C20H12O5) on vees raskesti lahustuv roheliselt fluorestseeriv punane kristalne aine.
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/d/d3/Fluorescein-sample.jpg/640px-Fluorescein-sample.jpg)
![Thumb image](http://upload.wikimedia.org/wikipedia/commons/thumb/f/f3/Florescein.jpg/640px-Florescein.jpg)
Fluorestseiini kasutatakse nt analüütilises keemias (indikaatorina), biokeemias, hüdroloogias (märkainena) jm[1].