Fluoran

Chemical compound

Fluoran

Names
Preferred IUPAC name

3H-Spiro[[2]benzofuran-1,9′-xanthen]-3-one

Identifiers

CAS Number

* 596-24-7 Y

3D model (JSmol)

* Interactive image

ChEBI |

* CHEBI:37915 Y

ChemSpider |

* 62216 Y

ECHA InfoCard | 100.008.984

PubChem CID

* 68994

UNII |

* C8A6LHH76W Y

CompTox Dashboard (EPA)

* DTXSID50208276

InChI

* InChI=1S/C20H12O3/c21-19-13-7-1-2-8-14(13)20(23-19)15-9-3-5-11-17(15)22-18-12-6-4-10-16(18)20/h1-12H Y

Key: FWQHNLCNFPYBCA-UHFFFAOYSA-N Y

* InChI=1/C20H12O3/c21-19-13-7-1-2-8-14(13)20(23-19)15-9-3-5-11-17(15)22-18-12-6-4-10-16(18)20/h1-12H

Key: FWQHNLCNFPYBCA-UHFFFAOYAD

SMILES

* O=C2OC4(c1ccccc12)c5ccccc5Oc3ccccc34

Properties

Chemical formula

| C20H12O3
Molar mass | 300.31

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Y verify (what is YN ?)

Infobox references

Chemical compound

Fluoran is a triarylmethane dye. It is the structural core of a variety of other dyes.[1]

These dyes have a variety of applications such as chemical stains (for example eosins) and in thermal paper. Black 305 is a common leuco dye product for thermal paper.[2]

The chemical structure of eosin, a fluoran-based dye

## References

[edit]

1. ^ Hatano, Y. "The chemistry of fluoran leuco dyes" in Chemistry and Applications of Leuco Dyes, Ed. R. Muthyala, Plenum Press 1997
2. ^ "BLACK 305". Nagase America. Nagase America Corporation. Retrieved 24 August 2019.

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