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Fmoc-NMe-PEG3-acid - CAS 1807518-77-9

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Fmoc-NMe-PEG3-acid is a PEG linker containing a Fmoc-protected amine and a terminal carboxylic acid. The Fmoc group can be deprotected under the basic conditions to obtain the free amine which can be used for further conjugations. 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
C25H31NO7
Molecular Weight
457.52

Fmoc-NMe-PEG3-acid

    • Specification
      • Purity
        ≥95%
        Solubility
        Soluble in DCM, DMF, DMSO
        Appearance
        Solid
        Shelf Life
        -20°C 3 years powder; -80°C 2 years in solvent
        Storage
        Store at 2-8°C
        Shipping
        Room temperature
        IUPAC Name
        3-[2-[2-[2-[9H-fluoren-9-ylmethoxycarbonyl(methyl)amino]ethoxy]ethoxy]ethoxy]propanoic acid
        Synonyms
        Fmoc-N-methyl-N-amido-PEG3-acid; Fmoc-N-methyl-PEG3-CH2CH2COOH; Fmoc-NMe-PEG(3)-COOH; Fmoc-N-methyl-N-amido-PEG3-COOH; 5,8,11-Trioxa-2-azatetradecanedioic acid, 2-methyl-, 1-(9H-fluoren-9-ylmethyl) ester; 1-(9H-Fluoren-9-yl)-4-methyl-3-oxo-2,7,10,13-tetraoxa-4-azahexadecan-16-oic acid; 2,7,10,13-Tetraoxa-4-azahexadecan-16-oic acid, 1-(9H-fluoren-9-yl)-4-methyl-3-oxo-
    • Properties
      • Boiling Point
        630.5±55.0°C (Predicted)
        Density
        1.218±0.06 g/cm3 (Predicted)
        InChI Key
        JKEBDIJQSKVIID-UHFFFAOYSA-N
        InChI
        InChI=1S/C25H31NO7/c1-26(11-13-31-15-17-32-16-14-30-12-10-24(27)28)25(29)33-18-23-21-8-4-2-6-19(21)20-7-3-5-9-22(20)23/h2-9,23H,10-18H2,1H3,(H,27,28)
        Canonical SMILES
        CN(CCOCCOCCOCCC(=O)O)C(=O)OCC1C2=CC=CC=C2C3=CC=CC=C13
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Tip: Chemical formula is case sensitive. C22H30N4O √ c22h30n40 ╳
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