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Structure of 17153-21-8
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3-Methyl-5-phenylisoxazole-4-carboxylic acid features a rigid, electron-deficient isoxazole core paired with a phenyl substituent and a carboxylic acid handle. This combination enables direct integration into bioconjugation workflows and serves as a key scaffold in the development of functionalized heterocycles for medicinal chemistry applications.
3-Methyl-5-phenylisoxazole-4-carboxylic acid serves as a versatile heterocyclic building block for medicinal chemistry and materials science applications. Its structure combines a stable isoxazole core with orthogonal functional groups, enabling direct coupling reactions and derivatization under standard conditions. The carboxylic acid moiety facilitates amide bond formation and salt generation, while the methyl and phenyl substituents provide steric and electronic tuning for scaffold diversification. Bench-stable and readily purified by recrystallization, it functions as a reliable intermediate in the synthesis of bioactive compounds and functional polymers.
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GHS Pictogram :
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GHS No : GHS07
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Signal Word : Warning
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UN#: N/A
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Class : N/A
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Packing Group : N/A
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Hazard Statements : H302-H315-H319-H335
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Precautionary Statements : P261-P264-P270-P271-P280-P302+P352-P304+P340-P305+P351+P338-P330-P362+P364-P403+P233-P405-P501
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Lot numbers can be found on the outside label of a product: