Also found in: Medical, Legal, Encyclopedia, Wikipedia.


1. A white crystalline compound, C8H7N, obtained from coal tar or various plants and produced by the bacterial decomposition of tryptophan in the intestine. It is used in perfumes and as a reagent.
2. Any of various derivatives of this compound.


(ˈɪndəʊl) or


(Elements & Compounds) a white or yellowish crystalline heterocyclic compound extracted from coal tar and used in perfumery, medicine, and as a flavouring agent; 1-benzopyrrole. Formula: C8H7N
[C19: from ind(igo) + -ole1]


(ˈɪn doʊl)

a colorless to yellowish solid, C8H7N, that has a low melting point and a fecal odor, is obtained from coal tar or from animal feces, and is used in perfumery and as a reagent.
References in periodicals archive ?
Summary: This article presents the isolation of two new compounds namely 2-(1-hydroxy-2-methylpropyl)-3-(2-hydroxyethyl)-1-methyl-1H-indole-4,7-diol (1) related to the class of indole alkaloid and propyl 4-(3, 4-dihydroxyhexyl)benzoate (2) related to the class of aromatic ester from the chloroform and petroleum ether fraction of Elaeagnus umbellata, respectively.
Tenders are invited for E-procurement for indole 3 acetic acid (iaa) in the department of botany, university of delhi.
Los escandalos de diversa indole no dejan de llover en nuestro pais, en gran medida todos ellos se vinculan con temas que tienen conexion con el crimen organizado y sus secuelas que parecen interminables.
Por razones largas de explicar, el Concilio fue cauto al referirse a la indole sacramental de este ministerio.
Jorge Galvan Martinez es de indole personal; en ningun momento he ostentado mi caracter de servidor publico, como tampoco lo hice cuando labore en la Universidad Nacional Autonoma de Mexico.
Natural indoles, indole-3-carbinol (I3C) and 3,3'-diindolylmethane (DIM), attenuate staphylococcal enterotoxin B-mediated liver injury by downregulating miR-31 expression and promoting caspase-2-mediated apoptosis.
coli) cells to convert indole and L-Ser to L-Trp by tryptophan synthase (TSase) (10).
V, Production of indole-3-acetic acid and related indole derivatives from L-tryptophan by Rubrivivax benzoatilyticus JA2.
According to the Cyprus News Agency (CNA), Eleftheriou was arrested on December 17, 2012 after he was caught by drug squad members receiving a parcel, which arrived in Cyprus from Shanghai through a courier company and containing three kilos of a synthetic drug identified as naphthoyl indole.
Significant values of correlation coefficient were found between phenol, indole, iso-butyric acid and iso-valeric acid with Atopostipes, p-cresol and skatole with Bacteroides, acetic acid and butyric acid with AM982595_g of Porphyromonadaceae family, and propionic acid with Tissierella.
Identification of bacteria: Selected bacterial isolates were identified by colony morphology, microscopic examination (gram staining, spore staining, and acid fast staining) and biochemical characteristics following Bergey's Manual of Determinative Bacteriology (Bergey, 2009) by performing tests such as catalase, oxidase, indole, methyl red, voges proskeur, citrate utilization, starch hydrolysis, carbohydrate fermentation i.