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Structure of 4860-93-9
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5-Phenyl-2,4-dihydro-3H-pyrazol-3-one features a conjugated enone system flanked by a phenyl ring and a pyrrolidinone core, enabling participation in cycloaddition reactions. The scaffold exhibits enhanced stability under standard conditions and integrates readily into heterocyclic libraries for medicinal chemistry applications.
5-Phenyl-2,4-dihydro-3H-pyrazol-3-one serves as a versatile heterocyclic building block for medicinal chemistry and synthetic organic applications. Its enolizable carbonyl and C5-phenyl substitution enable reliable participation in nucleophilic additions, cycloadditions, and transition-metal-catalyzed couplings. The scaffold exhibits bench stability, moderate solubility in common organic solvents, and compatibility with standard purification methods, facilitating integration into multi-step syntheses of functionalized pyrazole derivatives and pharmacologically relevant scaffolds.
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GHS Pictogram :
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GHS No : GHS06
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Signal Word : Danger
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UN#: 2811
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Class : 6.1
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Packing Group : Ⅲ
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Hazard Statements : H301-H317
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Precautionary Statements : P261-P264-P270-P272-P280-P302+P352-P330-P362+P364-P405-P501
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Lot numbers can be found on the outside label of a product: