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Lipoamido-PEG4-acid - CAS 1314378-10-3

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Lipoamido-PEG4-acid is a PEG linker containing a lipoic acid group and a terminal carboxylic acid. Lipoic acid contains two sulfur atoms (at C6 and C8) connected by a disulfide bond and is thus considered to be oxidized although either sulfur atom can exist in higher oxidation states. 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 linker increases the water solubility of the compound.

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Molecular Formula
C19H35NO7S2
Molecular Weight
453.61

Lipoamido-PEG4-acid

    • Specification
      • Related CAS
        1334172-69-8 (R-isomer) 1334172-71-2 (polymer)
        Purity
        ≥95%
        Solubility
        Soluble in DMSO
        Appearance
        Light Yellow or White Solid
        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-(5-(1,2-dithiolan-3-yl)pentanamido)ethoxy)ethoxy)ethoxy)ethoxy)propanoic acid
        Synonyms
        Lipoamido-PEG4-CH2CH2COOH; LA-PEG4-COOH; Lipoamido-PEG4-COOH; 3-[2-[2-[2-[2-[5-(dithiolan-3-yl)pentanoylamino]ethoxy]ethoxy]ethoxy]ethoxy]propanoic acid; 4,7,10,13-Tetraoxa-16-azaheneicosanoic acid, 21-(1,2-dithiolan-3-yl)-17-oxo-; 21-(1,2-Dithiolan-3-yl)-17-oxo-4,7,10,13-tetraoxa-16-azahenicosan-1-oic acid
    • Properties
      • Density
        1.2±0.1 g/cm3
        InChI Key
        QJFPDZROPSGMGV-UHFFFAOYSA-N
        InChI
        InChI=1S/C19H35NO7S2/c21-18(4-2-1-3-17-6-16-28-29-17)20-7-9-25-11-13-27-15-14-26-12-10-24-8-5-19(22)23/h17H,1-16H2,(H,20,21)(H,22,23)
        Canonical SMILES
        C1CSSC1CCCCC(=O)NCCOCCOCCOCCOCCC(=O)O
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Concentration (start) x Volume (start) = Concentration (final) x Volume (final)
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