Amino Acids and Nucleosides

We offer FMOC-protected unnatural amino acids for synthesis of peptides for biological research and pharmaceutical development. By introducing conformational constraints, the peptides may have one or several of the following features: 1. enhancement of peptide backbone helicity for better target binding; 2. tunable hydrophobicity for desired cellular permeability and cytotoxicity; and 3. enhancement of peptide stability against proteolytic breakdown.

We offer nucleosides with modifications at the pyrimidine or purine base, such as 6- Thioguanine, 7-Deazaadenine, 7-Deazaguanine, 8-Azidoadenine, 8-Bromoinosine and 8- Iodoadenine, and at the sugar such as 5'-Azido-5'-deoxythymidine, 2'-Azido-2'-deoxyuridine and 2'-Azido-2'-deoxy-5-methyl uridine.

  • Amino Acids for Stapled Peptides
  • 2-Methylated Amino Acids
  • Peptide Labeling
  • Other Unnatural Amino Acids
  • Modified Nucleosides
  • HNA Precursors
  • Morpholino Nucleosides
  • Other Nucleosides & Intermediates
  • Peptide Labeling

    Structure Details
    Product Name: Fmoc-Lys(Dansyl)-OH
    Order number: 204489
    CAS: 118584-90-0
    Purity: >=95%
    Appearance: solid
    MF: C33H35N3O6S
    MW: 601.718
    MP: n.a. oC

    Description:
    This Fmoc-protected solid-phase amenable amino acid carrying a fluorescent group Dansyl is a useful fluorescent peptide labeler for life sciences.
    Product Name: Fmoc- Lys(DABCYL)-OH
    Order number: 204492
    CAS: 146998-27-8
    Purity: >=95%
    Appearance: solid
    MF: C36H37N5O5
    MW: 619.722
    MP: n.a. oC

    Description:
    This Fmoc-protected solid-phase amenable amino acid carrying a fluorescent group Dabcyl is a useful peptide labeler for life sciences.
    Product Name: Fmoc-Lys(Biotin)-OH
    Order number: 204493
    CAS: 146987-10-2
    Purity: >=95%
    Appearance: solid
    MF: C31H38N4O6S
    MW: 594.727
    MP: n.a. oC

    Description:
    This Fmoc-protected solid-phase amenable amino acid carrying a biotinyl group is a valuable peptide labeler for life sciences.
    Product Name: N2-[(9H-Fluoren-9-ylmethoxy)carbonyl]-N6-[2-(7-methoxy-2-oxo-2H-1-benzopyran-4-yl)acetyl]-L-lysine
    Order number: 204419
    CAS: 386213-32-7
    Purity: >=95%
    Appearance: solid
    MF: C33H32N2O8
    MW: 584.625
    MP: n.a. oC

    Description:
    This is a valuable fluorescent to label peptide at N-terminal.
    Product Name: Fmoc-Lys(6`-FAM) -OH
    Order number: 204534
    CAS: 1266666-04-9
    Purity: >=95%
    Appearance: solid
    MF: C42H34N2O10
    MW: 726.738
    MP: n.a. oC

    Description:
    This Fmoc-protected solid-phase amenable product is lysine-derived fluorescein to be used for peptide labeling.
    Product Name: Fmoc-Lys(5`-FAM) -OH
    Order number: 204535
    CAS: 1242933-88-5
    Purity: >=95%
    Appearance: solid
    MF: C42H34N2O10
    MW: 726.738
    MP: n.a. oC

    Description:
    This Fmoc-protected solid-phase amenable product is lysine-derived fluorescein to be used for peptide labeling.