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  • Azido-PEG4-NHS ester

    Catalog Number ACM944251245
    Product Name Azido-PEG4-NHS ester
    CAS Number 944251-24-5
    Synonyms N3-PEG4-C2-NHS ester
    IUPAC Name (2,5-Dioxopyrrolidin-1-yl) 3-[2-[2-[2-(2-azidoethoxy)ethoxy]ethoxy]ethoxy]propanoate
    Molecular Weight 388.37
    Molecular Formula C15H24N4O8
    Canonical SMILES C1CC(=O)N(C1=O)OC(=O)CCOCCOCCOCCOCCN=[N+]=[N-]
    InChI InChI=1S/C15H24N4O8/c16-18-17-4-6-24-8-10-26-12-11-25-9-7-23-5-3-15(22)27-19-13(20)1-2-14(19)21/h1-12H2
    InChI Key OIGKWPIMJCPGGD-UHFFFAOYSA-N
    Purity >90%
    Solubility Soluble in dimethyl sulfoxide and acetonitrile
    Appearance Solid or viscous liquid
    Storage -20±5 ºC
    Description N3-PEG4-C2-NHS ester is a nonclaevable 4-unit PEG linker used in the synthesis of antibody-drug conjugates (ADCs).
    Complexity 508
    Covalently-Bonded Unit Count 1
    Exact Mass 388.15941374
    Heavy Atom Count 27
    Monoisotopic Mass 388.15941374
    Type Bioorthogonal Reagents
    Topological Polar Surface Area 115 Ų

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