SG3199-Val-Ala-PAB is an intermediate of Tesirine synthesis. Tesirine is a drug-linker conjugate for ADC which can be used for the research of several cancers.In Vitro: SG3199-Val-Ala-PAB is an intermediate in in the synthesis of Tesirine, an antibody-drug conjugate pyrrolobenzodiazepine dimer payload.