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Oxindole (2-indolone) is an aromatic heterocyclic organic compound with the formula C 6 H 4 CHC(O)NH. It has a bicyclic structure, consisting of a six-membered benzene ring fused to a five-membered nitrogen-containing ring. Oxindole is a modified indoline with a substituted carbonyl at the second position of the 5-member indoline ring ...
Indole is a solid at room temperature. It occurs naturally in human feces and has an intense fecal odor.At very low concentrations, however, it has a flowery smell, [3] and is a constituent of many perfumes.
Phenylhydrazine is used to prepare indoles by the Fischer indole synthesis, which are intermediates in the synthesis of various dyes and pharmaceuticals.. Phenylhydrazine is used to form phenylhydrazones of natural mixtures of simple sugars in order to render the differing sugars easily separable from each other.
Melting point: 125 to 126 °C (257 to 259 °F; 398 to 399 K) ... Horsfiline is an oxindole alkaloid found in the plant Horsfieldia superba, [1] which is used in ...
The melting point (or, rarely, liquefaction point) of a substance is the temperature at which it changes state from solid to liquid. At the melting point the solid and liquid phase exist in equilibrium. The melting point of a substance depends on pressure and is usually specified at a standard pressure such as 1 atmosphere or 100 kPa.
The Sandmeyer methodology is the oldest and straightforward way for the synthesis of isatin. [11] The method involves the condensation between chloral hydrate and a primary arylamine (e.g. aniline), in the presence of hydroxylamine hydrochloride, in aqueous sodium sulfate to form an α‐isonitrosoacetanilide.
Indole-3-acetic acid (IAA, 3-IAA) is the most common naturally occurring plant hormone of the auxin class. It is the best known of the auxins, and has been the subject of extensive studies by plant physiologists. [1]
Melting point 44–45 °C (111–113 °F; 317–318 K) Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).