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COOH-PEG5-COOMe - CAS 1309460-30-7

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COOH-PEG5-COOMe is a PEG linker containing a terminal carboxylic acid and a mono-methyl ester functional group. Methyl ester can be hydrolyzed under strongly basic conditions. The carboxylic acid can react with primary amines in the presence of EDC and HATU to form stable amide bonds. The hydrophilic PEG linker increases the water solubility of the compound in aqueous media.

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Molecular Formula
C15H28O9
Molecular Weight
352.38

COOH-PEG5-COOMe

    • Specification
      • Purity
        ≥95%
        Solubility
        Soluble in DCM, 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-(3-methoxy-3-oxopropoxy)ethoxy]ethoxy]ethoxy]ethoxy]propanoic acid
        Synonyms
        Carboxy-PEG5-mono-methyl ester; Acid-PEG5-mono-methyl ester; 3-Oxo-2,6,9,12,15,18-hexaoxahenicosan-21-oic acid; 4,7,10,13,16-Pentaoxanonadecanedioic acid, 1-methyl ester; Acid-PEG5-Methyl Ester; 4,7,10,13,16-Pentaoxanonadecane-1,19-dioic acid, monomethyl ester
    • Properties
      • Boiling Point
        469.4±45.0°C (Predicted)
        Density
        1.151±0.06 g/cm3 (Predicted)
        InChI Key
        LSGMOHWEFFVQEO-UHFFFAOYSA-N
        InChI
        InChI=1S/C15H28O9/c1-19-15(18)3-5-21-7-9-23-11-13-24-12-10-22-8-6-20-4-2-14(16)17/h2-13H2,1H3,(H,16,17)
        Canonical SMILES
        COC(=O)CCOCCOCCOCCOCCOCCC(=O)O
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