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Structure of 960613-96-1
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3-Bromo-5-chloropyrazolo[1,5-a]pyrimidine features a fused heterocyclic core with orthogonal halogen substituents enabling selective functionalization. This electron-deficient scaffold integrates readily into cross-coupling cascades and serves as a key intermediate in the synthesis of bioactive pyrazolopyrimidine derivatives.
3-Bromo-5-chloropyrazolo[1,5-a]pyrimidine serves as a versatile heterocyclic building block for medicinal chemistry and materials science applications. Its dual halogenation pattern enables sequential cross-coupling reactions, facilitating the construction of complex pyrazolo[1,5-a]pyrimidine scaffolds. The compound exhibits excellent bench stability and compatibility with palladium-catalyzed coupling protocols, supporting efficient functionalization under standard reaction conditions.
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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 : 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: