m-PEG3-COOH - CAS 209542-49-4

m-PEG3-COOH 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
C8H16O5
Molecular Weight
192.21

m-PEG3-COOH

    • Specification
      • Purity
        ≥95%
        Solubility
        Soluble in DCM, DMF, DMSO, Water
        Appearance
        Pale Yellow or Colorless Oily Liquid
        Storage
        Store at 2-8°C
        Shipping
        Room temperature in continental US; may vary elsewhere.
        IUPAC Name
        3-[2-(2-methoxyethoxy)ethoxy]propanoic acid
        Synonyms
        m-PEG2-CH2CH2COOH; m-PEG3-acid; Propanoic acid, 3-[2-(2-methoxyethoxy)ethoxy]-; COOHCH2CH2-PEG2-OME
    • Properties
      • Boiling Point
        301.7±27.0 °C at 760 mmHg
        Density
        1.102±0.06 g/cm3 (Predicted)
        InChI Key
        HFCYTEWOPOCEBG-UHFFFAOYSA-N
        InChI
        InChI=1S/C8H16O5/c1-11-4-5-13-7-6-12-3-2-8(9)10/h2-7H2,1H3,(H,9,10)
        Canonical SMILES
        COCCOCCOCCC(=O)O
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