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Bis-PEG5-acetic acid - CAS 77855-76-6

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PEG6-(CH2CO2H)2 is a symmetric PEG PROTAC linker, for the synthesis of Homo-PROTACs which is bivalent small-molecule dimerizers of the VHL E3 ubiquitin ligase to induce self-degradation. PEG6-(CH2CO2H)2 is a PEG derivative containing two terminal carboxylic acid groups. The hydrophilic PEG spacer increases solubility in aqueous media. The terminal carboxylic acids can be reacted with primary amine groups in the presence of activators (e.g. EDC, or DCC) to form a stable amide bond.

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Molecular Formula

C14H26O10

Molecular Weight

354.35

Bis-PEG5-acetic acid

- Specification
  - Purity
    
    ≥95%
    
    Solubility
    
    Soluble in DMSO, Water
    
    Appearance
    
    Colorless Oily Liquid
    
    Storage
    
    Store at 2-8°C
    
    Shipping
    
    Room temperature in continental US; may vary elsewhere
    
    IUPAC Name
    
    2-[2-[2-[2-[2-[2-(carboxymethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]acetic acid
    
    Synonyms
    
    COOH-CH2-PEG6-CH2-COOH; COOH-CH2-PEG5-CH2-COOH; 3,6,9,12,15,18-Hexaoxaeicosanedioic acid; 3,6,9,12,15,18-Hexaoxaicosane-1,20-dioic acid
- Properties
  - Boiling Point
    
    524.8±45.0 °C at 760 mmHg
    
    Density
    
    1.234±0.06 g/cm3 (Predicted)
    
    InChI Key
    
    DCQRSABUSOYSIY-UHFFFAOYSA-N
    
    InChI
    
    InChI=1S/C14H26O10/c15-13(16)11-23-9-7-21-5-3-19-1-2-20-4-6-22-8-10-24-12-14(17)18/h1-12H2,(H,15,16)(H,17,18)
    
    Canonical SMILES
    
    C(COCCOCCOCC(=O)O)OCCOCCOCC(=O)O

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