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Structure of 253801-04-6
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1H-indazole-5-carbaldehyde features a reactive aldehyde group positioned at the 5-position of the indazole core, enabling direct functionalization in C–H activation and transition-metal-catalyzed coupling reactions. This electron-deficient heterocycle integrates readily into bioactive scaffolds and conjugated systems, offering high stability under standard conditions and compatibility with diverse synthetic transformations.
1H-indazole-5-carbaldehyde serves as a versatile building block in medicinal chemistry, enabling efficient access to biologically active heterocycles through standard aldehyde transformations. Its well-defined reactivity facilitates nucleophilic additions, condensations, and coupling reactions with high functional group tolerance. The molecule exhibits bench stability and clean purification profiles, making it suitable for scalable synthesis and fragment-based drug discovery applications.
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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 : H319
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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: