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Structure of 136888-21-6
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2-Chloro-5-fluoro-3-nitropyridine features a trifunctional pyridine core with complementary electron-withdrawing groups enabling precise tuning of reactivity. The ortho-chloro and para-fluoro substituents facilitate palladium-catalyzed cross-coupling, while the meta-nitro group serves as a handle for selective reduction or nucleophilic displacement. This scaffold integrates readily into complex heterocyclic architectures under standard conditions.
2-Chloro-5-fluoro-3-nitropyridine serves as a versatile heterocyclic building block for medicinal chemistry and agrochemical synthesis. Its orthogonal reactivity enables selective functionalization at the chloro, fluoro, or nitro positions via cross-coupling, nucleophilic substitution, or reduction protocols. The molecule exhibits good bench stability and facilitates efficient access to substituted pyridine scaffolds commonly found in pharmaceutical intermediates.
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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: