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Carboxy-PEG4-sulfonic acid - CAS 1817735-25-3

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Carboxy-PEG4-sulfonic acid is a PEG linker containing a carboxylic acid and a sulfonic acid end group. The terminal carboxylic acid can participate in reactions with primary amines in the presence of activators such as EDC and HATU. Sulfonic acid can undergo esterification, halogenation and replacement reactions. The hydrophilic PEG linker increases the compound's water solubility in aqueous media.

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Molecular Formula
C11H22O9S
Molecular Weight
330.35

Carboxy-PEG4-sulfonic acid

    • Specification
      • Purity
        ≥95%
        Solubility
        Soluble in DMSO, Water
        Appearance
        Colorless 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
        3-[2-[2-[2-(2-sulfoethoxy)ethoxy]ethoxy]ethoxy]propanoic acid
        Synonyms
        1-Sulfo-3,6,9,12-tetraoxapentadecan-15-oic acid; 3,6,9,12-Tetraoxapentadecan-15-oic acid, 1-sulfo-
    • Properties
      • Density
        1.3±0.1 g/cm3
        InChI Key
        AIQWRGDWHOOSMN-UHFFFAOYSA-N
        InChI
        InChI=1S/C11H22O9S/c12-11(13)1-2-17-3-4-18-5-6-19-7-8-20-9-10-21(14,15)16/h1-10H2,(H,12,13)(H,14,15,16)
        Canonical SMILES
        C(COCCOCCOCCOCCS(=O)(=O)O)C(=O)O
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