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Carboxy-PEG4-phosphonic acid - CAS 1623791-69-4

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Carboxy-PEG4-phosphonic acid is a PEG linker with a carboxylic acid and a phosphonic acid group. The carboxylic acid can react with primary amines in the presence of activators such as EDC and HATU to form stable amide bonds. The hydrophilic PEG chain increases the water solubility of the compound in aqueous media.

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Molecular Formula
C11H23O9P
Molecular Weight
330.27

Carboxy-PEG4-phosphonic acid

    • Specification
      • Purity
        ≥95%
        Solubility
        Soluble in DMSO
        Appearance
        Pale 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
        3-[2-[2-[2-(2-phosphonoethoxy)ethoxy]ethoxy]ethoxy]propanoic acid
        Synonyms
        1-phosphono-3,6,9,12-tetraoxapentadecan-15-oic acid; 4,7,10,13-Tetraoxa-16-phosphahexadecanoic acid, 16,16-dihydroxy-, 16-oxide; 1,1-Dihydroxy-4,7,10,13-tetraoxa-1-phosphahexadecan-16-oic acid 1-oxide
    • Properties
      • Boiling Point
        545.5±60.0°C at 760 mmHg
        Density
        1.3±0.1 g/cm3
        InChI Key
        HQKHMGCGBQVUTI-UHFFFAOYSA-N
        InChI
        InChI=1S/C11H23O9P/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)(H2,14,15,16)
        Canonical SMILES
        C(COCCOCCOCCOCCP(=O)(O)O)C(=O)O
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