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Structure of 22282-99-1
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Azido-PEG3-S-PEG4-propargyl is a crosslinker containing a propargyl group and an azide group. The propargyl group can react with azide-bearing compounds or biomolecules via copper catalyzed azide-alkyne Click Chemistry to yield stable triazole linkages. The azide group enables PEGylation via Click Chemistry. The hydrophilic PEG spacer increases solubility in aqueous media.
4-Bromo-2-methylpyridine serves as a versatile building block in medicinal chemistry and catalytic cross-coupling reactions. Its bromine substituent enables reliable Suzuki, Stille, and Negishi couplings, while the ortho-methyl group enhances electronic modulation and metabolic stability. The compound exhibits excellent bench stability, facilitates straightforward purification, and functions effectively in Pd-catalyzed transformations under standard conditions.
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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-H302-H315-H318-H335
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Precautionary Statements : P210-P261-P264-P270-P271-P280-P302+P352-P304+P340-P330-P362+P364-P370+P378-P403-P405-P501
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Lot numbers can be found on the outside label of a product: