The Garcinia GB2, with the CAS registry number 18913-18-3, is also known as (2S, 2'R, 3R, 3'R)-2'-(3, 4-Dihydroxyphenyl)-3', 5, 5', 7, 7'-pentahydroxy-2-(4-hydroxyphenyl)-2, 2', 3, 3'-tetrahydro-4H, 4'H-3, 8'-bichromene-4, 4'-dione. This chemical's molecular formula is C₃₀H₂₂O₁₂ and molecular weight is 574.4885. What's more, its IUPAC name is (2R, 3R)-8-[(2S, 3R)-5, 7-Dihydroxy-2-(4-hydroxyphenyl)-4-oxo-2, 3-dihydrochromen-3-yl]-2-(3, 4-dihydroxyphenyl)-3, 5, 7-trihydroxy-2, 3-dihydrochromen-4-one. In addition, this chemical is a Biflavone of Garcinia kola seeds.

Physical properties about Garcinia GB2 are: (1)ACD/LogP: 4.63; (2)# of Rule of 5 Violations: 3; (3)ACD/LogD (pH 5.5): 4.61; (4)ACD/LogD (pH 7.4): 3.58; (5)ACD/BCF (pH 5.5): 1845.04; (6)ACD/BCF (pH 7.4): 172.94; (7)ACD/KOC (pH 5.5): 7446.64; (8)ACD/KOC (pH 7.4): 697.98; (9)#H bond acceptors: 12; (10)#H bond donors: 8; (11)#Freely Rotating Bonds: 11; (12)Polar Surface Area: 126.44 Å²; (13)Index of Refraction: 1.786; (14)Molar Refractivity: 142.16 cm³; (15)Molar Volume: 336.7 cm³; (16)Polarizability: 56.35×10^-24 cm³; (17)Surface Tension: 101 dyne/cm; (18)Density: 1.706 g/cm³; (19)Flash Point: 325.4 °C; (20)Enthalpy of Vaporization: 148.49 kJ/mol; (21)Boiling Point: 972.9 °C at 760 mmHg; (22)Vapour Pressure: 0 mmHg at 25 °C.

You can still convert the following datas into molecular structure:
(1) SMILES: O=C2c3c(O[C@H](c1ccc(O)c(O)c1)[C@H]2O)c(c(O)cc3O)[C@H]5C(=O)c6c(O[C@@H]5c4ccc(O)cc4)cc(O)cc6O
(2) InChI: InChI=1/C30H22O12/c31-13-4-1-11(2-5-13)28-24(25(38)21-17(35)8-14(32)9-20(21)41-28)22-18(36)10-19(37)23-26(39)27(40)29(42-30(22)23)12-3-6-15(33)16(34)7-12/h1-10,24,27-29,31-37,40H/t24-,27-,28+,29+/m0/s1
(3) InChIKey: SNFOQVRNAHJPMU-BENTYHEHBR