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m-PEG4-CH2-acid - CAS 874208-84-1

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m-PEG4-CH2-acid is a PEG linker containing a terminal carboxylic acid. The terminal carboxylic acid can react with primary amine groups in the presence of activators (e.g. EDC, or HATU) to form a stable amide bond. The hydrophilic PEG spacer increases solubility in aqueous media.

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Molecular Formula
C11H22O6
Molecular Weight
250.29

m-PEG4-CH2-acid

    • Specification
      • Purity
        ≥95%
        Solubility
        Soluble in DMSO
        Appearance
        Light Yellow Oily Matter
        Storage
        Store at 2-8°C for short term (days to weeks) or -20°C for long term (months to years)
        Shipping
        Room temperature in continental US; may vary elsewhere.
        IUPAC Name
        4-[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]butanoic acid
        Synonyms
        m-PEG4-(CH2)3-acid; 4-{2-[2-(2-Methoxy-ethoxy)-ethoxy]-ethoxy}-butyric acid; 2,5,8,11-Tetraoxapentadecan-15-oic acid
    • Properties
      • Boiling Point
        366.2±32.0°C at 760 mmHg
        Density
        1.1±0.1 g/cm3
        InChI Key
        HKQFGVZYAYHZJS-UHFFFAOYSA-N
        InChI
        InChI=1S/C11H22O6/c1-14-5-6-16-9-10-17-8-7-15-4-2-3-11(12)13/h2-10H2,1H3,(H,12,13)
        Canonical SMILES
        COCCOCCOCCOCCCC(=O)O
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