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Tos-PEG9-COOtBu - CAS 1345337-28-1

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Tos-PEG9-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
C30H52O13S
Molecular Weight
652.79

Tos-PEG9-COOtBu

    • Specification
      • Purity
        ≥95%
        Solubility
        Soluble in DMSO, DCM, DMF
        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-[2-[2-(4-methylphenyl)sulfonyloxyethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]propanoate
        Synonyms
        Tos-PEG9-t-butyl ester; Tos-PEG9-Boc; tert-butyl 1-(tosyloxy)-3,6,9,12,15,18,21,24-octaoxaheptacosan-27-oate
    • Properties
      • Boiling Point
        677.8±55.0 °C at 760 mmHg
        Density
        1.1±0.1 g/cm3
        InChI Key
        AEHJPVCQXNLJCY-UHFFFAOYSA-N
        InChI
        InChI=1S/C30H52O13S/c1-27-5-7-28(8-6-27)44(32,33)42-26-25-41-24-23-40-22-21-39-20-19-38-18-17-37-16-15-36-14-13-35-12-11-34-10-9-29(31)43-30(2,3)4/h5-8H,9-26H2,1-4H3
        Canonical SMILES
        CC1=CC=C(C=C1)S(=O)(=O)OCCOCCOCCOCCOCCOCCOCCOCCOCCC(=O)OC(C)(C)C
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L

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Concentration (start) x Volume (start) = Concentration (final) x Volume (final)
It is commonly abbreviated as: C1V1 = C2V2

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* Total Molecular Weight:
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Tip: Chemical formula is case sensitive. C22H30N4O √ c22h30n40 ╳
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