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Structure of 1057670-09-3
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5-Ethynyl-2,3-dimethylthiophene features a reactive alkyne handle flanked by two methyl groups on the thiophene ring, enhancing stability and solubility. This electron-rich heterocycle integrates readily into cross-coupling reactions, enabling efficient access to functionalized aromatic systems under mild conditions.
5-Ethynyl-2,3-dimethylthiophene serves as a versatile building block in transition-metal-catalyzed coupling reactions, enabling efficient access to substituted thiophene architectures. Its terminal alkyne functionality exhibits high compatibility with Sonogashira and copper-catalyzed couplings, while the methyl-substituted thiophene core provides enhanced bench stability and facilitates purification. Functions effectively in the synthesis of conjugated materials and heterocyclic scaffolds relevant to organic electronics and medicinal chemistry.
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GHS Pictogram :
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GHS No : GHS05,GHS07
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Signal Word : Danger
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UN#: 1760
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Class : 8
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Packing Group : Ⅲ
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Hazard Statements : H227-H315-H318-H335
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Precautionary Statements : P210-P261-P264-P271-P280-P302+P352-P304+P340-P362-P370+P378-P405-P501
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Lot numbers can be found on the outside label of a product: