All chemical linkers are of >95% purity and they are the basic building blocks for a successful ADC. Linkers facilitate the conjugation of ADC toxins to antibodies and in the meantime, they also dictate the release mechanism of an ADC. Proper linker selection will not only ease the process of obtaining the conjugate but also help enhance the chemical and serum stability of the ADC, such as val cit pab. https://www.creative-biolabs.com/adc/classify-adc-linkers-7.htm