Langbahn Team – Weltmeisterschaft

Fluoran

Fluoran
Names
Preferred IUPAC name
3H-Spiro[[2]benzofuran-1,9′-xanthen]-3-one
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.008.984 Edit this at Wikidata
UNII
  • 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 checkY
    Key: FWQHNLCNFPYBCA-UHFFFAOYSA-N checkY
  • 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
  • O=C2OC4(c1ccccc12)c5ccccc5Oc3ccccc34
Properties
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).
checkY verify (what is checkY☒N ?)

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

  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.


Quelle: https://en.wikipedia.org/wiki/Fluoran