Mafodotin (mc-MMAF) is a hydrophilic non-cleavable antimicrotubule and antimitotic agent, monomethyl auristatin F (MMAF) derivative, having a maleimidocaproyl linker (mc linker), which is ready to conjugate to an antibody or other proteins or biopolymers. Antibody-drug conjugates having mafodotin such as Depatuxizumab mafodotin and Belantamab mafodotin have undergone clinical trials for the treatment of neoplasms.