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Methylketol or 2-methylindole is a mildly toxic and slightly flammable organic compound which occurs as a white solid which turns brown over time. [1] [2] It has chemical formula C 9 H 9 N. [3] Methylketol is used as an intermediate for synthesizing dyes, [4] pigments, [5] optical brighteners, and pharmaceuticals. [6]
A variety of isomers of methyl indole derivatives are known: 1-methylindole; 2-methylindole; skatole (3-methylindole) 4-methylindole; 5-methylindole; 6-methylindole;
Indole is an organic compound with the formula C 6 H 4 CCNH 3. Indole is classified as an aromatic heterocycle. It has a bicyclic structure, consisting of a six-membered benzene ring fused to a five-membered pyrrole ring. Indoles are derivatives of indole where one or more of the hydrogen atoms have been replaced by substituent groups.
The compound is based on the indole structure, but the 2-3 bond is saturated. By oxidation/dehydrogenation it can be converted to indole. [1] [2] Indoline can be produced from the reaction of indole, zinc and 85% phosphoric acid. [3] It was used to make Indocaine.
Skatole, along with the fecal odorant indole, can be neutralized by combining it with other scents, by producing perfumes or air fresheners that lack skatole and indole. In a manner similar to noise-cancelling headphones , the scent produced by the resultant concentrations of skatole and indole relative to other substances in the freshener is ...
7-Methyl-1H-indole. Identifiers CAS Number. ... 7-Methylindole is used in the production of agricultural chemicals and pharmaceuticals. [citation needed] See also
β-Carbolines belong to the group of indole alkaloids and consist of a pyridine ring that is fused to an indole skeleton. [27] The structure of β-carboline is similar to that of tryptamine, with the ethylamine chain re-connected to the indole ring via an extra carbon atom, to produce a three-ringed structure.
The methyl red test detects production of acids formed during metabolism using mixed acid fermentation pathway using pyruvate as a substrate. The pH indicator Methyl Red is added to one tube and a red color appears at pH's lower than 4.2, indicating a positive test (mixed acid fermentation is used).