Xanthene

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Not to be confused with xanthine.
Xanthene
Skeletal formula
Ball-and-stick model
Names
IUPAC name
9H-Xanthene
Other names
Dibenzo[a,e]pyran
10H-9-oxaanthracene
Identifiers
CAS number 92-83-1 YesY
ChEBI CHEBI:10057 N
ChEMBL ChEMBL486760 N
ChemSpider 6840 N
EC number 202-194-4
Jmol-3D images Image
PubChem 7107
Properties
C13H10O
Molar mass 182.22 g·mol−1
Appearance Yellow solid
Melting point 101 °C (214 °F; 374 K)[1]
Boiling point 310 °C (590 °F; 583 K)[1]
Hazards
R-phrases R42 R43
S-phrases S22 S36 S37 S45
Except where noted otherwise, data is given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
 N verify (what isYesY/N?)
Infobox references

Xanthene (9H-xanthene, 10H-9-oxaanthracene) is a yellow organic heterocyclic compound. Its chemical formula is C13H10O. It is soluble in diethyl ether. Its melting point is 101-102 °C and its boiling point is 310-312 °C. Xanthene is used as a fungicide and it is also a useful intermediate in organic synthesis.

Derivatives of xanthene are commonly referred to collectively as xanthenes, and among other uses are the basis of a class of dyes which includes fluorescein, eosins, and rhodamines. Xanthene dyes tend to be fluorescent, yellow to pink to bluish red, brilliant dyes. Many xanthene dyes can be prepared by condensation of derivates of phthalic anhydride with derivates of resorcinol or 3-aminophenol.

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