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Br-PEG3-CH2COOH - CAS 1346502-15-5

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Br-PEG3-CH2COOH is a PEG linker containing a bromide group with a terminal carboxylic acid. 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. The bromide (Br) is a very good leaving group for nucleophilic substitution reactions.

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Molecular Formula
C8H15BrO5
Molecular Weight
271.11

Br-PEG3-CH2COOH

    • Specification
      • Purity
        ≥95%
        Solubility
        Soluble in DMSO
        Appearance
        Pale Yellow or Colorless Oily Matter
        Storage
        Store at 2-8°C
        Shipping
        Room temperature in continental US; may vary elsewhere.
        IUPAC Name
        2-[2-[2-(2-bromoethoxy)ethoxy]ethoxy]acetic acid
        Synonyms
        Bromo-PEG3-CH2CO2H; Bromo-PEG3-acetic acid; Acetic acid, 2-[2-[2-(2-bromoethoxy)ethoxy]ethoxy]-
    • Properties
      • Boiling Point
        379.7±27.0°C (Predicted)
        Density
        1.446±0.06 g/cm3 (Predicted)
        InChI Key
        MNTZZZWRXHWCSC-UHFFFAOYSA-N
        InChI
        InChI=1S/C8H15BrO5/c9-1-2-12-3-4-13-5-6-14-7-8(10)11/h1-7H2,(H,10,11)
        Canonical SMILES
        C(COCCBr)OCCOCC(=O)O
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