2-(2-hydroxyethoxy)ethyl 4-methylbenzenesulfonate - CAS 118591-58-5

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Tos-PEG2-OH is a polyethylene glycol (PEG)-based PROTAC linker. Tos-PEG2-OH can be used in the synthesis of a series of PROTACs.

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Molecular Formula

C₁₁H₁₆O₅S

Molecular Weight

260.31

2-(2-hydroxyethoxy)ethyl 4-methylbenzenesulfonate

- Specification
  - Appearance
    
    Liquid
    
    Storage
    
    Pure form, -20°C, 3 years; 4°C, 2 years; In solvent, -80°C, 6 months; -20°C, 1 month
    
    Shipping
    
    Room temperature in continental US; may vary elsewhere.
    
    IUPAC Name
    
    2-(2-hydroxyethoxy)ethyl 4-methylbenzenesulfonate
    
    Synonyms
    
    Ethanol, 2-(2-hydroxyethoxy)-, 1-(4-Methylbenzenesulfonate); Tos-PEG2-Alcohol
- Properties
  - Boiling Point
    
    427.4±30.0 °C at 760 mmHg
    
    Density
    
    1.3±0.1 g/cm3
    
    InChI Key
    
    KLDLLRZCWYKJBD-UHFFFAOYSA-N
    
    InChI
    
    InChI=1S/C11H16O5S/c1-10-2-4-11(5-3-10)17(13,14)16-9-8-15-7-6-12/h2-5,12H,6-9H2,1H3
    
    Canonical SMILES
    
    CC1=CC=C(C=C1)S(=O)(=O)OCCOCCO

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