The Gemifloxacin mesilate, with the CAS registry number 210353-56-3, is also known as 1,8-Naphthyridine-3-carboxylic acid, 7-[(4Z)-3-(aminomethyl)-4-(methoxyimino)-1-pyrrolidinyl]-1-cyclopropyl-6-fluoro-1,4-dihydro-4-oxo-. This chemical's molecular formula is C₁₈H₂₀FN₅O₄ and molecular weight is 389.380903. Its IUPAC name is called 7-[(4Z)-3-(aminomethyl)-4-methoxyiminopyrrolidin-1-yl]-1-cyclopropyl-6-fluoro-4-oxo-1,8-naphthyridine-3-carboxylic acid.

Physical properties of Gemifloxacin mesilate: (1)ACD/LogP: 1.77; (2)ACD/LogD (pH 5.5): -2; (3)ACD/LogD (pH 7.4): -2; (4)ACD/BCF (pH 5.5): 1; (5)ACD/BCF (pH 7.4): 1; (6)ACD/KOC (pH 5.5): 1; (7)ACD/KOC (pH 7.4): 1; (8)#H bond acceptors: 9; (9)#H bond donors: 3; (10)#Freely Rotating Bonds: 6; (11)Index of Refraction: 1.735; (12)Molar Refractivity: 94.87 cm³; (13)Molar Volume: 236.331 cm³; (14)Surface Tension: 66.121 dyne/cm; (15)Density: 1.648 g/cm³; (16)Flash Point: 340.206 °C; (17)Enthalpy of Vaporization: 99.166 kJ/mol; (18)Boiling Point: 638.919 °C at 760 mmHg; (19)Vapour Pressure: 0 mmHg at 25°C.

You can still convert the following datas into molecular structure:
(1)Canonical SMILES: CON=C1CN(CC1CN)C2=C(C=C3C(=O)C(=CN(C3=N2)C4CC4)C(=O)O)F
(2)Isomeric SMILES: CO/N=C/1\CN(CC1CN)C2=C(C=C3C(=O)C(=CN(C3=N2)C4CC4)C(=O)O)F
(3)InChI: InChI=1S/C18H20FN5O4/c1-28-22-14-8-23(6-9(14)5-20)17-13(19)4-11-15(25)12(18(26)27)7-24(10-2-3-10)16(11)21-17/h4,7,9-10H,2-3,5-6,8,20H2,1H3,(H,26,27)/b22-14+
(4)InChIKey: ZRCVYEYHRGVLOC-HYARGMPZSA-N