Empirical Formula of N-Fluorenyl-2-phthalimic acid (CAS NO.2485-10-1): C₂₁H₁₅NO₃
Molecular Weight: 329.3487 
Index of Refraction: 1.726
Density: 1.373 g/cm³
Flash Point: 255.5 °C
Enthalpy of Vaporization: 80.8 kJ/mol
Boiling Point: 498.9 °C at 760 mmHg
Vapour Pressure: 8.96E-11 mmHg at 25 °C
Structure of N-Fluorenyl-2-phthalimic acid (CAS NO.2485-10-1):
                         
IUPAC Name: 2-(9H-Fluoren-2-ylcarbamoyl)benzoic acid
Canonical SMILES: C1C2=CC=CC=C2C3=C1C=C(C=C3)NC(=O)C4=CC=CC=C4C(=O)O
InChI: InChI=1S/C21H15NO3/c23-20(18-7-3-4-8-19(18)21(24)25)22-15-9-10-17-14(12-15)11-13-5-1-2-6-16(13)17/h1-10,12H,11H2,(H,22,23)(H,24,25)
InChIKey: QUJRZEAMTDWGDV-UHFFFAOYSA-N

Questionable carcinogen with experimental tumorigenic data. When heated to decomposition N-Fluorenyl-2-phthalimic acid (CAS NO.2485-10-1) emits toxic fumes of NO_x.

 N-Fluorenyl-2-phthalimic acid , its cas register number is 2485-10-1. It also can be called Phthalamic acid, N-fluoren-2-yl- ; N-Fluorenyl-2-phthalimic acid ; and 2-Benzoylamidofluorene-2'-carboxylate .