IUPAC Name: 12-Methoxynaphtho[1,2-b]phenanthrene 
Following is the structure of 5-Methoxydibenz(a,h)anthracene (CAS NO.63019-72-7):
                         
Empirical Formula: C₂₃H₁₆O
Molecular Weight: 308.3725 g/mol
Surface Tension: 54.5 dyne/cm
Density: 1.233 g/cm³
Flash Point: 231.1 °C
Enthalpy of Vaporization: 80.28 kJ/mol
Boiling Point: 553.2 °C at 760 mmHg
Vapour Pressure: 1.02E-11 mmHg at 25 °C
Index of Refraction of 5-Methoxydibenz(a,h)anthracene (CAS NO.63019-72-7): 1.774
Canonical SMILES: COC1=CC2=C(C=C3C=CC4=CC=CC=C4C3=C2)C5=CC=CC=C51
InChI: InChI=1S/C23H16O/c1-24-23-14-17-13-21-16(11-10-15-6-2-3-7-18(15)21)12-22(17)19-8-4-5-9-20(19)23/h2-14H,1H3
InChIKey: PVUUUZXPFRYKEJ-UHFFFAOYSA-N

Questionable carcinogen with experimental tumorigenic data. When heated to decomposition, of 5-Methoxydibenz(a,h)anthracene (CAS NO.63019-72-7) emits acrid smoke and irritating fumes.

 5-Methoxydibenz(a,h)anthracene , its cas register number is 63019-72-7. It also can be called  3-Methoxy-1,2:5,6-dibenzanthracene ; 3-Methoxy-dba ; and Dibenz(a,h)anthracene, 5-methoxy- . Its classification code is Tumor data.