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Structure of 137504-86-0
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L-Cysteine ethyl ester hydrochloride is widely used in food additive, cosmetic, pharmaceutical area.
4-Chloro-3-fluorophenylboronic acid serves as a versatile building block in palladium-catalyzed cross-coupling reactions, enabling efficient C–C bond formation under standard Suzuki-Miyaura conditions. Its orthogonal halogen reactivity allows sequential functionalization, while the boronic acid group offers excellent bench stability and compatibility with diverse reaction matrices. This reagent facilitates the synthesis of complex fluorinated aromatics and heterocyclic scaffolds commonly found in pharmaceutical intermediates.
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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#: 1759
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Class : 8
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Packing Group : Ⅲ
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Hazard Statements : H315-H318-H335
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Precautionary Statements : P261-P264-P271-P280-P302+P352-P304+P340-P362+P364-P405-P501
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Lot numbers can be found on the outside label of a product: