Fluorone

{{distinguish|Fluorene|Fluorenone|Fluorine}}

{{Chembox

| verifiedrevid = 400095481

| ImageFile = Fluorone.png

| ImageAlt = Skeletal formula

| ImageFile1 = Fluorone-3D-balls.png

| ImageAlt1 = Ball-and-stick model

| PIN = 3H-Xanthen-3-one

| OtherNames = 3-Isoxanthone; 3-Oxo-3H-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,{{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}} including fluorescein, erythrosine and rhodamine. It is an isomer of xanthone, sometimes referred to as an isoxanthone.

File:Erythrosine.svg]]{{clear left}}