The chemical Lexibulin has a designated molecular formula of C24H30N6O2 and a molecular weight of 434.544 g/mol. Synonyms may include: UNII-2GTU230HA1, CYT 997, 1-Ethyl-3-(2-methoxy-4-(5-methyl-4-(((1S)-1-(pyridin-3-yl)butyl)amino)pyrimidin-2-yl)phenyl)urea, Urea, N-ethyl-n'-(2-methoxy-4-(5-methyl-4-(((1S)-1-(3-pyridinyl)butyl)amino)-2-pyrimidinyl)phenyl)-, CYT-997 (ChemID).