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Bis-PEG12-acid

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Bis-PEG12-acid is a PEG linker containing two terminal carboxylic acid groups. The terminal carboxylic acids 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
C28H54O16
Molecular Weight
646.72

Bis-PEG12-acid

    • Specification
      • Related CAS
        51178-68-8 (polymer)
        Purity
        ≥95%
        Appearance
        Pale Yellow or Colorless Oily Matter
        Storage
        Store at 2-8°C
        Shipping
        Room temperature in continental US; may vary elsewhere.
        IUPAC Name
        3-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-(2-carboxyethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]propanoic acid
        Synonyms
        4,7,10,13,16,19,22,25,28,31,34,37-Dodecaoxatetracontane-1,40-dioic acid; HOOCCH2CH2O-PEG11-CH2CH2COOH; Di-Acid-PEG12; HOOC-PEG12-COOH; 4,7,10,13,16,19,22,25,28,31,34,37-Dodecaoxatetracontanedioic acid
    • Properties
      • Boiling Point
        710.9±60.0°C at 760 mmHg
        Density
        1.2±0.1 g/cm3
        InChI Key
        BWTKNCGJGMISKP-UHFFFAOYSA-N
        InChI
        InChI=1S/C28H54O16/c29-27(30)1-3-33-5-7-35-9-11-37-13-15-39-17-19-41-21-23-43-25-26-44-24-22-42-20-18-40-16-14-38-12-10-36-8-6-34-4-2-28(31)32/h1-26H2,(H,29,30)(H,31,32)
        Canonical SMILES
        C(COCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCC(=O)O)C(=O)O
Bio Calculators
Stock concentration: *
Desired final volume: *
Desired concentration: *

L

* Our calculator is based on the following equation:
Concentration (start) x Volume (start) = Concentration (final) x Volume (final)
It is commonly abbreviated as: C1V1 = C2V2

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