{{distinguish|Fluorene|Fluorenone|Fluorine}} {{Chembox | verifiedrevid = 400095481 | ImageFile = Fluorone.png | ImageAlt = Skeletal formula | ImageFile1 = Fluorone-3D-balls.png | ImageAlt1 = Ball-and-stick model | PIN = 3''H''-Xanthen-3-one | OtherNames = 3-Isoxanthone; 3-Oxo-3''H''-xanthene |Section1={{Chembox Identifiers | ChemSpiderID_Ref = {{chemspidercite|correct|chemspider}} | ChemSpiderID = 9507995 | InChI = 1/C13H8O2/c14-11-6-5-10-7-9-3-1-2-4-12(9)15-13(10)8-11/h1-8H | InChIKey = FRIPRWYKBIOZJU-UHFFFAOYAE | StdInChI_Ref = {{stdinchicite|correct|chemspider}} | StdInChI = 1S/C13H8O2/c14-11-6-5-10-7-9-3-1-2-4-12(9)15-13(10)8-11/h1-8H | StdInChIKey_Ref = {{stdinchicite|correct|chemspider}} | StdInChIKey = FRIPRWYKBIOZJU-UHFFFAOYSA-N | CASNo_Ref = {{cascite|correct|??}} | CASNo = 494-41-7 | UNII_Ref = {{fdacite|correct|FDA}} | UNII = 7X94VF2YWN | PubChem = 11333049 | SMILES = O=C1C=CC2=Cc3ccccc3OC2=C1 }} |Section2={{Chembox Properties | C=13 | H=8 | O=2 | Appearance = | Density = | MeltingPt = | BoilingPt = | Solubility = }} |Section3={{Chembox Hazards | MainHazards = | FlashPt = | AutoignitionPt = }} }}
'''Fluorone''' is a heterocyclic chemical compound. It forms the core structure for various chemicals, most notably fluorone dyes,<ref>{{cite journal | doi = 10.1021/jo00042a020 |author1=Shi, Jianmin |author2=Zhang, Xianping |author3=Neckers, Douglas C | title = Xanthenes: fluorone derivatives | journal = Journal of Organic Chemistry | year = 1992 | volume = 57 | issue = 16 | pages = 4418–4421}}</ref> including fluorescein, erythrosine and rhodamine. It is an isomer of xanthone, sometimes referred to as an isoxanthone.
[[File:Erythrosine.svg|thumb|left|Chemical structure of erythrosine]]{{clear left}}
== See also == * Xanthene
== References == {{Reflist}}
Category:Fluorones
{{Heterocyclic-stub}}