How can residues of indole be removed from a reaction mixture without using column chromatography?

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Kirill I. Petko

Indole is volatile enought, more, it volatile with hot water vapour. If your product is stable, make for it several minutes of steam-distillation, and your traces of indole will run away, in there only traces of indole and not a large qualities

Rossen Buyukliev

Try to extract indole with concentrated water solution of potassium hydroxide.

Jagatheeswaran Kothandapani

thanks to all..