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Structure of 1093307-29-9
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5-Ethynyl-3-methyl-1H-indazole is a bench-stable, electron-deficient heterocycle featuring a terminal alkyne group and a methyl substituent at the 3-position. This combination enables efficient copper-catalyzed coupling reactions, facilitating rapid integration into bioconjugation workflows and complex molecular architectures.
5-Ethynyl-3-methyl-1H-indazole serves as a versatile building block for transition-metal-catalyzed coupling reactions, enabling efficient access to conjugated heterocyclic architectures. Its terminal alkyne functionality facilitates Sonogashira, Glaser, and click-type transformations with high reliability. The molecule exhibits excellent bench stability, tolerates common functional groups, and simplifies purification—making it well-suited for iterative synthesis in medicinal chemistry and materials development.
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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-H332-H335
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Precautionary Statements : P261-P264-P270-P271-P280-P302+P352-P304+P340-P330-P362+P364-P405-P501
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Lot numbers can be found on the outside label of a product: