Gepotidacin, also assigned the code name GSK2140944, has CAS registry number 1075236-89-3, with molecular formula C₂₄H₂₈N₆O₃ and molecular weight 448.52. Its full systematic IUPAC name is (R)-2-[[4-[[(3,4-dihydro-2H-pyrano[2,3-c]pyridin-6-yl)methyl]amino]-1-piperidinyl]methyl]-1,2-dihydro-3H,8H-2a,5,8a-triazaacenaphthylene-3,8-dione. This chiral compound exists as a white to yellow solid, with a predicted boiling point of 661.9±65.0 °C and a predicted density of 1.52±0.1 g/cm³. It dissolves in DMSO at 7.14 mg/mL (15.92 mM). For long-term preservation, solid Gepotidacin should be stored at -20 °C; its structural identifiers including InChIKey and SMILES are provided for synthetic, analytical and chromatographic reference. As a novel triazaacenaphthylene-class bacterial type II topoisomerase inhibitor, Gepotidacin serves as a core research tool for antibacterial mechanism studies, anti-infective drug screening and preclinical microbiology investigations.