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Structure of 4247-02-3
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This building block is prepared from highly purified PEG to ensure homogeneous products free from contaminating PEG oligomers. In this derivative the azido group acts as an orthogonally masked amine; it is stable to both TFA and piperidine but is easily converted to an amine by treatment with phosphines or thiols. For a similar spacer, see reference [1]. This material is now only available as an oil.Associated Protocols and Technical ArticlesGuide to Selection of Orthogonally-Protected Building Blocks for Fmoc SPPSLiterature references[1] J. Mack, et al. (1999) J. Peptide Sci., 6, 135.
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GHS Pictogram :
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GHS No : GHS05
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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
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Precautionary Statements : P264-P280-P302+P352-P362+P364
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Lot numbers can be found on the outside label of a product: