Product Name:Indole-3-acetic acid CAS:87-51-4 MF:C10H9NO2 MW:175.18 EINECS:201-748-2 Mol File:87-51-4.mol Melting point:165-169 °C(lit.) Boiling point:306.47°C (rough estimate) Density 1.1999 (rough estimate) refractive index 1.5460 (estimate) Flash point:171°C storage temp. −20°C pka4.75(at 25ºC) form crystalline color off-white to tan Water Solubility Soluble in ethanol (50 mg/ml), met hanol, DMSO, and chloroforme (sparingly). Insoluble in water. Sensitive Light Sensitive Decomposition 167 ºC
UsesPlant growth regulator. DefinitionChEBI: A monocarboxylic acid that is acetic acid in which one of the methyl hydrogens has been replaced by a 1H-indol-3-yl group. Biosynthesis3-Indolylacetic acid is biosynthesised in plants from tryptophan by two pathways, the indolylpyruvic acid pathway being quantitatively the more important. Experiments with tomato shoots have shown the existence of a tryptophan transaminase, which catalyses the formation of indolylpyruvic acid, and a tryptophan decarboxylase, which catalyses the formation of tryptamine. The decarboxylation of indolylpyruvic acid is catalysed by indolylpyruvate decarboxylase, while indolylacetaldehyde dehydrogenase catalyses the oxidation of indolylacetaldehyde to indolylacetic acid.
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