Tos-PEG7-COOtBu - CAS 406213-75-0

Tos-PEG7-COOtBu linker bears a t-butyl ester and a tosyl group. The hydrophilic PEG spacer increases the solubility in aqueous media. The carboxyl group protected by tert-butyl can be deprotected under acidic conditions. Tosyl group is a very good leaving group for nucleophilic substitution reaction.

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Molecular Formula
C26H44O11S
Molecular Weight
564.69

Tos-PEG7-COOtBu

    • Specification
      • Purity
        ≥95%
        Solubility
        Soluble in DMSO
        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
        tert-butyl 3-[2-[2-[2-[2-[2-[2-(4-methylphenyl)sulfonyloxyethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]propanoate
        Synonyms
        tert-butyl 1-(tosyloxy)-3,6,9,12,15,18-hexaoxahenicosan-21-oate; Tos-peg7-t-butyl ester; Tos-PEG7-t-Butyl ester; Tos-PEG7-Boc
    • Properties
      • Boiling Point
        621.1±55.0 °C at 760 mmHg
        Density
        1.1±0.1 g/cm3
        InChI Key
        HMGVIAOGIVRIFP-UHFFFAOYSA-N
        InChI
        InChI=1S/C26H44O11S/c1-23-5-7-24(8-6-23)38(28,29)36-22-21-35-20-19-34-18-17-33-16-15-32-14-13-31-12-11-30-10-9-25(27)37-26(2,3)4/h5-8H,9-22H2,1-4H3
        Canonical SMILES
        CC1=CC=C(C=C1)S(=O)(=O)OCCOCCOCCOCCOCCOCCOCCC(=O)OC(C)(C)C
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