Fluoran is a triarylmethane dye. It is the structural core of a variety of other dyes.[1]
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Preferred IUPAC name
3H-Spiro[[2]benzofuran-1,9′-xanthen]-3-one | |
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3D model (JSmol)
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ChEBI |
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ChemSpider |
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ECHA InfoCard | 100.008.984 |
PubChem CID
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UNII |
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CompTox Dashboard (EPA)
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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).
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Infobox references
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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]