The 5-(9-Fluorenylmethyloxycarbonylamino)-3-oxapentanoic acid with cas registry number of 260367-12-2, whose systematic name is 2-[2-(9H-fluoren-9-ylmethoxycarbonylamino)ethoxy]acetic acid. And it is also named 5-(9-Fluorenylmethyloxycarbonyl-amino)-3-oxapentanoic acid, [2-(Fmoc-amino)ethoxy]acetic acid.

Physical properties about this chemical are: (1)ACD/LogP: 2.99; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 0.9; (4)ACD/BCF (pH 5.5): 1; (5)ACD/BCF (pH 7.4): 1; (6)ACD/KOC (pH 5.5): 8.3; (7)ACD/KOC (pH 7.4): 1; (8)#H bond acceptors: 6; (9)#H bond donors: 2; (10)#Freely Rotating Bonds: 8; (11)Polar Surface Area: 84.86 Å²; (12)Index of Refraction: 1.596; (13)Molar Refractivity: 90.33 cm³; (14)Molar Volume: 265.2 cm³; (15)Polarizability: 35.81×10^-24cm³; (16)Surface Tension: 55.5 dyne/cm; (17)Enthalpy of Vaporization: 94.27 kJ/mol; (18)Vapour Pressure: 2.25E-15 mmHg at 25°C.

You can still convert the following datas into molecular structure: 
(1)SMILES:c1ccc2c(c1)-c3ccccc3C2COC(=O)NCCOCC(=O)O;
(2)InChI:InChI=1/C19H19NO5/c21-18(22)12-24-10-9-20-19(23)25-11-17-15-7-3-1-5-13(15)14-6-2-4-8-16(14)17/h1-8,17H,9-12H2,(H,20,23)(H,21,22);
(3)InChIKey:LBVXPUINIMIGAU-UHFFFAOYAV;
(4)Std. InChI:InChI=1S/C19H19NO5/c21-18(22)12-24-10-9-20-19(23)25-11-17-15-7-3-1-5-13(15)14-6-2-4-8-16(14)17/h1-8,17H,9-12H2,(H,20,23)(H,21,22);
(5)Std. InChIKey:LBVXPUINIMIGAU-UHFFFAOYSA-N