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Skeletal formula
Ball-and-stick model
CAS number 480-93-3
PubChem 50591
ChemSpider 45861 YesY
KEGG C05658 YesY
ChEBI CHEBI:17840 YesY
Jmol-3D images Image 1
Molecular formula C8H7NO
Molar mass 133.14728
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

In chemistry, indoxyl is a nitrogenous substance with the chemical formula: C8H7NO.[1][2] Indoxyl is isomeric with oxindol and is obtained as an oily liquid.

Indoxyl is obtained from indican, which is a glycoside. The hydrolysis of indican yields β-D-glucose and indoxyl.

Indigo dye is a product of the reaction of indoxyl by a mild oxidizing agent such as atmospheric oxygen.


  1. ^ Katritzky, A. R.; Pozharskii, A. F. (2000). Handbook of Heterocyclic Chemistry (2nd ed.). Academic Press. ISBN 0080429882. 
  2. ^ Clayden, J.; Greeves, N.; Warren, S.; Wothers, P. (2001). Organic Chemistry. Oxford, Oxfordshire: Oxford University Press. ISBN 0-19-850346-6.