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Hydroxy-PEG8-t-butyl ester - CAS 1334177-84-2

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Hydroxy-PEG8-t-butyl ester is a PEG linker containing a hydroxyl group and a t-butyl ester. The hydroxyl group enables further derivatization or replacement with other reactive functional groups. The t-butyl-protected carboxyl group can be deprotected under acidic conditions. The hydrophilic PEG spacer increases solubility in aqueous media.

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Molecular Formula

C23H46O11

Molecular Weight

498.60

Hydroxy-PEG8-t-butyl ester

- Specification
  - Purity
    
    ≥95%
    
    Solubility
    
    Soluble in DCM, DMF, DMSO, Water
    
    Appearance
    
    Pale Yellow Oily Liquid
    
    Storage
    
    Store at 2-8°C
    
    Shipping
    
    Room temperature in continental US; may vary elsewhere.
    
    IUPAC Name
    
    tert-butyl 3-[2-[2-[2-[2-[2-[2-[2-(2-hydroxyethoxy)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]propanoate
    
    Synonyms
    
    HO-PEG8-CH2CH2COOtBu; Hydroxy-PEG8-(CH2)2-Boc; OH-PEG8-TBA; OH-PEG8-CH2CH2COOtBu; HO-PEG8-t-butyl ester; tert-Butyl 1-Hydroxy-3,6,9,12,15,18,21,24-octaoxaheptacosan-27-oate; t-Butyl 1-hydroxy-3,6,9,12,15,18,21,24-octaoxaheptacosan-27-oate; 2-Methyl-2-propanyl 1-hydroxy-3,6,9,12,15,18,21,24-octaoxaheptacosan-27-oate; 3,6,9,12,15,18,21,24-Octaoxaheptacosan-27-oic acid, 1-hydroxy-, 1,1-dimethylethyl ester; 27-Hydroxy-4,7,10,13,16,19,22,25-octaoxaheptacosanoic acid tert-butyl ester
- Properties
  - Boiling Point
    
    549.5±45.0°C at 760 mmHg
    
    Density
    
    1.1±0.1 g/cm3
    
    InChI Key
    
    RBRDLMWBCQQRIQ-UHFFFAOYSA-N
    
    InChI
    
    InChI=1S/C23H46O11/c1-23(2,3)34-22(25)4-6-26-8-10-28-12-14-30-16-18-32-20-21-33-19-17-31-15-13-29-11-9-27-7-5-24/h24H,4-21H2,1-3H3
    
    Canonical SMILES
    
    CC(C)(C)OC(=O)CCOCCOCCOCCOCCOCCOCCOCCOCCO
- Preparing Stock Solutions
  - ConcentrationVolumeMass 1 mg 5 mg 10 mg
    
    1 mM 2.0056 mL 10.0281 mL 20.0562 mL
    
    5 mM 0.4011 mL 2.0056 mL 4.0112 mL
    
    10 mM 0.2006 mL 1.0028 mL 2.0056 mL

ConcentrationVolumeMass	1 mg	5 mg	10 mg
1 mM	2.0056 mL	10.0281 mL	20.0562 mL
5 mM	0.4011 mL	2.0056 mL	4.0112 mL
10 mM	0.2006 mL	1.0028 mL	2.0056 mL

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