The D-Threonine,N-[(9H-fluoren-9-ylmethoxy)carbonyl]-O-(phenylmethyl)-, with the CAS registry number of 131545-63-6, is also known as (2S,3R)-2-[(Fluoren-9-ylmethoxy)carbonylamino]-3-(phenylmethoxy)butanoic acid. Its molecular formula is C₂₆H₂₅NO₅ and molecular weight is 431.48. What's more, its systematic name is O-Benzyl-N-[(9H-fluoren-9-ylmethoxy)carbonyl]-L-threonine.

Physical properties about the D-Threonine,N-[(9H-fluoren-9-ylmethoxy)carbonyl]-O-(phenylmethyl)- are: (1)ACD/LogP: 6.35; (2)# of Rule of 5 Violations: 1; (3)ACD/LogD (pH 5.5): 3.9; (4)ACD/LogD (pH 7.4): 2.69; (5)ACD/BCF (pH 5.5): 139.42; (6)ACD/BCF (pH 7.4): 8.7; (7)ACD/KOC (pH 5.5): 239.61; (8)ACD/KOC (pH 7.4): 14.95; (9)#H bond acceptors: 6; (10)#H bond donors: 2; (11)#Freely Rotating Bonds: 9; (12)Polar Surface Area: 65.07 Å²; (13)Index of Refraction: 1.612; (14)Molar Refractivity: 119.37 cm³; (15)Molar Volume: 343.1 cm³; (16)Surface Tension: 54.1 dyne/cm; (17)Density: 1.257 g/cm³; (18)Flash Point: 343.1 °C; (19)Enthalpy of Vaporization: 99.82 kJ/mol; (20)Boiling Point: 643.7 °C at 760 mmHg; (21)Vapour Pressure: 1.89E-17 mmHg at 25 °C.

You can still convert the following datas into molecular structure:
(1) SMILES: O=C(O)[C@@H](NC(=O)OCC3c1ccccc1c2c3cccc2)[C@H](OCc4ccccc4)C
(2) InChI: InChI=1/C26H25NO5/c1-17(31-15-18-9-3-2-4-10-18)24(25(28)29)27-26(30)32-16-23-21-13-7-5-11-19(21)20-12-6-8-14-22(20)23/h2-14,17,23-24H,15-16H2,1H3,(H,27,30)(H,28,29)/t17-,24+/m1/s1
(3) InChIKey: UCDMMWCWPVCHLL-OSPHWJPCBE