The Vitamin K2(45), with the CAS registry number 523-39-7, is also known as Menaquinone-9. It belongs to the product category of Drugs & Medication. This chemical's molecular formula is C₅₅H₇₈O₂ and molecular weight is 771.219. Its IUPAC name is called 2-methyl-3-[(2E,6E,10E,14E,18E,22E,26E,30E)-3,7,11,15,19,23,27,31,35-nonamethylhexatriaconta-2,6,10,14,18,22,26,30,34-nonaenyl]naphthalene-1,4-dione.

Physical properties of Vitamin K2(45): (1)ACD/LogP: 21.11; (2)# of Rule of 5 Violations: 2; (3)ACD/LogD (pH 5.5): 21.11; (4)ACD/LogD (pH 7.4): 21.11; (5)ACD/BCF (pH 5.5): 1000000; (6)ACD/BCF (pH 7.4): 1000000; (7)ACD/KOC (pH 5.5): 10000000; (8)ACD/KOC (pH 7.4): 10000000; (9)#H bond acceptors: 2; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 26; (12)Index of Refraction: 1.529; (13)Molar Refractivity: 255.24 cm³; (14)Molar Volume: 826.6 cm³; (15)Surface Tension: 35.7 dyne/cm; (16)Density: 0.949 g/cm³; (17)Melting Point: 60-61 °C; (18)Flash Point: 280.5 °C; (19)Enthalpy of Vaporization: 117.41 kJ/mol; (20)Boiling Point: 807.6 °C at 760 mmHg; (21)Vapour Pressure: 3.97E-26 mmHg at 25°C.

You can still convert the following datas into molecular structure:
(1)SMILES: O=C\2c1c(cccc1)C(=O)/C(=C/2C)C\C=C(/C)CC\C=C(/C)CC\C=C(/C)CC\C=C(/C)CC\C=C(/C)CC\C=C(/C)CC\C=C(/C)CC\C=C(/C)CC\C=C(/C)C
(2)InChI: InChI=1/C56H80O2/c1-42(2)22-14-23-43(3)24-15-25-44(4)26-16-27-45(5)28-17-29-46(6)30-18-31-47(7)32-19-33-48(8)34-20-35-49(9)36-21-37-50(10)40-41-52-51(11)55(57)53-38-12-13-39-54(53)56(52)58/h12-13,22,24,26,28,30,32,34,36,38-40H,14-21,23,25,27,29,31,33,35,37,41H2,1-11H3/b43-24+,44-26+,45-28+,46-30+,47-32+,48-34+,49-36+,50-40+
(3)InChIKey: WCRXHNIUHQUASO-UVZVDVBNBI