Fluorone

Fluorone
Names
	IUPAC name Xanthen-3-one
	Other names 3-Isoxanthone; 3-Oxo-3H-xanthene
Identifiers
CAS Number	494-41-7 ;
3D model (JSmol)	Interactive image;
ChemSpider	9507995 ;
PubChem CID	11333049;
CompTox Dashboard (EPA)	DTXSID60462625 ;
	InChI InChI=1S/C13H8O2/c14-11-6-5-10-7-9-3-1-2-4-12(9)15-13(10)8-11/h1-8H Key: FRIPRWYKBIOZJU-UHFFFAOYSA-N ; InChI=1/C13H8O2/c14-11-6-5-10-7-9-3-1-2-4-12(9)15-13(10)8-11/h1-8H Key: FRIPRWYKBIOZJU-UHFFFAOYAE;
	SMILES O=C/2/C=C\C1=C\c3c(O/C1=C\2)cccc3;
Properties
Chemical formula	C13H8O2
Molar mass	196.205 g·mol−1
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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	Infobox references

Fluorone is a heterocyclic chemical compound. It forms the core structure for various chemicals, most notably fluorone dyes,[1] including fluorescein, erythrosine and rhodamine. It is an isomer of xanthone, sometimes referred to as an isoxanthone.

Chemical structure of erythrosine

Not to be confused with fluorene, fluorenone, or fluorine.

References

Shi, Jianmin; Zhang, Xianping; Neckers, Douglas C (1992). "Xanthenes: fluorone derivatives". Journal of Organic Chemistry. 57 (16): 4418–4421. doi:10.1021/jo00042a020.

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