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Fmoc-NH-PEG6-NHS ester - CAS 1818294-31-3

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Fmoc-NH-PEG6-NHS ester is a PEG linker containing a Fmoc-protected amine and an NHS ester. The Fmoc group can be deprotected under the basic conditions to obtain the free amine which can be used for further conjugations. The NHS ester can be used to label the primary amines (-NH2) of proteins, amine-modified oligonucleotides, and other amine-containing molecules. The hydrophilic PEG spacer increases solubility in aqueous media.

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Molecular Formula

C34H44N2O12

Molecular Weight

672.72

Fmoc-NH-PEG6-NHS ester

- Specification
  - Purity
    
    ≥95%
    
    Solubility
    
    Soluble in DCM, DMF, DMSO
    
    Appearance
    
    Pale Yellow or Colorless Oily Matter
    
    Storage
    
    Store at 2-8°C
    
    Shipping
    
    Room temperature in continental US; may vary elsewhere.
    
    IUPAC Name
    
    (2,5-dioxopyrrolidin-1-yl) 3-[2-[2-[2-[2-[2-[2-(9H-fluoren-9-ylmethoxycarbonylamino)ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]propanoate
    
    Synonyms
    
    Fmoc-PEG6-NHS ester; Fmoc-PEG6-C2-NHS ester; Fmoc-NH-PEG6-NHS; FmocNH-PEG6-CH2CH2COONHS; Fmoc-PEG6-CH2CH2-NHS ester; Fmoc-N-amido-PEG6-NHS ester; 2,5-dioxopyrrolidin-1-yl 1-(9H-fluoren-9-yl)-3-oxo-2,7,10,13,16,19,22-heptaoxa-4-azapentacosan-25-oate; 5,8,11,14,17,20-Hexaoxa-2-azatricosanedioic acid, 23-(2,5-dioxo-1-pyrrolidinyl) 1-(9H-fluoren-9-ylmethyl) ester; 9H-Fluoren-9-ylmethyl {21-[(2,5-dioxo-1-pyrrolidinyl)oxy]-21-oxo-3,6,9,12,15,18-hexaoxahenicos-1-yl}carbamate; Carbamic acid, N-[21-[(2,5-dioxo-1-pyrrolidinyl)oxy]-21-oxo-3,6,9,12,15,18-hexaoxaheneicos-1-yl]-, 9H-fluoren-9-ylmethyl ester
- Properties
  - Density
    
    1.3±0.1 g/cm3
    
    InChI Key
    
    KFJXLDJJJJQTGL-UHFFFAOYSA-N
    
    InChI
    
    InChI=1S/C34H44N2O12/c37-31-9-10-32(38)36(31)48-33(39)11-13-41-15-17-43-19-21-45-23-24-46-22-20-44-18-16-42-14-12-35-34(40)47-25-30-28-7-3-1-5-26(28)27-6-2-4-8-29(27)30/h1-8,30H,9-25H2,(H,35,40)
    
    Canonical SMILES
    
    C1CC(=O)N(C1=O)OC(=O)CCOCCOCCOCCOCCOCCOCCNC(=O)OCC2C3=CC=CC=C3C4=CC=CC=C24

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