Chemical name: tert-butyloxycarbonyl-valyl-alanyl-4-aminobenzylchloride // Synonyms: tert-butyl ((S)-1-(((S)-1-((4-(chloromethyl)phenyl)amino)-1-oxopropan-2-yl)amino)-3-methyl-1-oxobutan-2-yl)carbamate, Boc-VA-PAB-Cl

  • Product code:ADC1660
  • Formula:C20H30ClN3O4
  • Molecular weight:411.93 g/mol

Starting at $975.00

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Qty Packing unit Price SKU
250 mg

Linker for Antibody-Drug-Conjugation (ADC). In contrast to the hydroxybenzyl derivative ADC1040 the chloride is able to react with tertiary amines to form a linked quarternary amine. The Val-Ala will specifically be cleaved by Cathepsin B. As this enzyme is only present in the lysosome the ADC payload will be released only inside those cells.


Laurent Ducry (ed.), Antibody-Drug Conjugates, Methods in Molecular Biology, vol. 1045, Springer Science+Business Media, LLC 2013;

Development of Novel Quaternary Ammonium Linkers for Antibody-Drug Conjugates; P. J. Burke, J. Z. Hamilton, T. A. Pires, J. R. Setter. J. H. Hunter, J. H. Cochran, A. B. Waight, K. A. Gordon, B. E. Toki, K. K. Emmerton, W. Zeng, I. J. Stone, P. D. Senter, R. P. Lyon, S. C. Jeffrey; Mol. Cancer Ther. 2016; 15(5): 938-954.

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