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Medchemexpress LLC Fmoc-PEG4-Ala-Ala-Asn-PAB | 2055048-57-0 | 849.92 | C43H55N5O13 | 50 MG
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Supplier:  Medchemexpress LLC HY14114950MG

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Fmoc-PEG4-Ala-Ala-Asn-PAB is a cleavable four-unit polyethylene glycol (PEG4) peptide linker designed for the synthesis of antibody-drug conjugates (ADCs). It contains a protease-cleavable Ala-Ala-Asn peptide sequence, an Fmoc-protected N-terminus to facilitate peptide synthesis, and a para-aminobenzyl (PAB) self-immolative spacer to enable controlled drug release.

  • Cleavable protease-sensitive Ala-Ala-Asn sequence.
  • Four-unit PEG spacer increases aqueous solubility.
  • Fmoc-protected N-terminus supports standard peptide coupling workflows.
  • PAB self-immolative spacer enables release of payload upon cleavage.
  • Supplied as a white to off-white solid for convenient handling.
  • Stable in powder form at -20°C for long-term storage; shorter stability in solution.

Catalog No. 50-002-03786


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