Acetyl angiotensinogen (1-14), porcine is a synthetic peptide and N-terminal acetylated form of Angiotensinogen (1-14) porcine .

N-Nitroso-N-methylurea is a nitrosourea compound with alkylating, carcinogenic, and mutagenic properties.

KL-50 is a selective toxin toward tumors that lack the DNA repair protein O6-methylguanine-DNA-methyltransferase (MGMT), which reverses the formation of O6-alkylguanine lesions. KL-50 activates DNA damage response pathways and cycle arrest in MGMT-cells, independent of mismatch repair (MMR). KL-50 is promising for research of brain tumors that lack the DNA repair protein MGMT.