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Hydroxy-PEG6-t-butyl ester - CAS 361189-64-2

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Hydroxy-PEG6-t-butyl ester is a PEG linker containing a hydroxyl group and a t-butyl ester. The hydroxyl group enables further derivatization or replacement with other reactive functional groups. The t-butyl-protected carboxyl group can be deprotected under acidic conditions. The hydrophilic PEG spacer increases solubility in aqueous media.

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Molecular Formula
C19H38O9
Molecular Weight
410.50

Hydroxy-PEG6-t-butyl ester

    • Specification
      • Related CAS
        1186025-29-5 (polymer) 892154-71-1 (polymer)
        Purity
        ≥95%
        Appearance
        Pale Yellow or Colorless Oily Liquid
        Storage
        Store at 2-8°C
        Shipping
        Room temperature in continental US; may vary elsewhere.
        IUPAC Name
        tert-butyl 3-[2-[2-[2-[2-[2-(2-hydroxyethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]propanoate
        Synonyms
        HO-PEG6-CH2CH2COOtBu; Hydroxy-PEG6-(CH2)2-Boc; OH-PEG6-TBA; OH-PEG6-CH2CH2COOtBu; HO-PEG6-t-butyl ester; tert-butyl 1-hydroxy-3,6,9,12,15,18-hexaoxahenicosan-21-oate; 2-Methyl-2-propanyl 1-hydroxy-3,6,9,12,15,18-hexaoxahenicosan-21-oate; 3,6,9,12,15,18-Hexaoxaheneicosan-21-oic acid, 1-hydroxy-, 1,1-dimethylethyl ester
    • Properties
      • Boiling Point
        481.8±40.0 °C at 760 mmHg
        Density
        1.076±0.06 g/cm3 (Predicted)
        InChI Key
        VGGDPFAYSOSIOK-UHFFFAOYSA-N
        InChI
        InChI=1S/C19H38O9/c1-19(2,3)28-18(21)4-6-22-8-10-24-12-14-26-16-17-27-15-13-25-11-9-23-7-5-20/h20H,4-17H2,1-3H3
        Canonical SMILES
        CC(C)(C)OC(=O)CCOCCOCCOCCOCCOCCOCCO
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