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Bis-PEG3-acid - CAS 96517-92-9

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Bis-PEG3-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

C10H18O7

Molecular Weight

250.25

Bis-PEG3-acid

- Specification
  - Related CAS
    
    51178-68-8 (polymer)
    
    Purity
    
    >95%
    
    Solubility
    
    Soluble in DMF, DMSO, Water
    
    Appearance
    
    Pale Yellow or Colorless Oily Liquid
    
    Storage
    
    Store at 2-8°C
    
    Shipping
    
    Room temperature in continental US; may vary elsewhere.
    
    IUPAC Name
    
    3-[2-[2-(2-carboxyethoxy)ethoxy]ethoxy]propanoic acid
    
    Synonyms
    
    3,3'-((Oxybis(ethane-2,1-diyl))bis(oxy))dipropanoic acid; Propanoic acid, 3,3'-[oxybis(2,1-ethanediyloxy)]bis-; 4,7,10-trioxa-tridecanedioic acid; Bis-PEG3-COOH; HOOCCH2CH2O-PEG2-CH2CH2COOH; 3,3'-[Oxybis(2,1-ethanediyloxy)]dipropanoic acid
- Properties
  - Boiling Point
    
    445.4±40.0 °C at 760 mmHg
    
    Density
    
    1.239±0.06 g/cm3 (Predicted)
    
    InChI Key
    
    WFLUHYUKINZPNZ-UHFFFAOYSA-N
    
    InChI
    
    InChI=1S/C10H18O7/c11-9(12)1-3-15-5-7-17-8-6-16-4-2-10(13)14/h1-8H2,(H,11,12)(H,13,14)
    
    Canonical SMILES
    
    C(COCCOCCOCCC(=O)O)C(=O)O

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