IUPAC Name: 7,10-dimethylbenzo[c]acridine 
Empirical Formula: C₁₉H₁₅N
Molecular Weight: 257.3291g/mol
Structure of 6,9-Dimethyl-1,2-benzacridine (CAS NO.2381-40-0):

Index of Refraction: 1.737
Molar Refractivity: 87.52 cm³
Molar Volume: 217.5 cm³
Polarizability: 34.69×10^-24cm³
Surface Tension: 53.4 dyne/cm
Density: 1.182 g/cm³
Flash Point: 209.8 °C
Enthalpy of Vaporization: 70.47 kJ/mol
Boiling Point: 470.2 °C at 760 mmHg
Vapour Pressure: 1.46E-08 mmHg at 25°C 
Classification Code: Mutation data, Tumor data 
Canonical SMILES: CC1=CC2=C(C=C1)C(=C3C=CC4=CC=CC=C4C3=N2)C
InChI: InChI=1S/C19H15N/c1-12-7-9-15-13(2)16-10-8-14-5-3-4-6-17(14)19(16)20-18(15)11-12/h3-11H,1-2H3
InChIKey: RCWNHXIFXQTICS-UHFFFAOYSA-N

EPA Genetic Toxicology Program.

Hazard Codes: Xn
Risk Statements: 20/21/22-36/37/38-40 
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed. 
R36/37/38:Irritating to eyes, respiratory system and skin. 
R40:Limited evidence of a carcinogenic effect.
Safety Statements: 22-26-36 
S22:Do not breathe dust. 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36:Wear suitable protective clothing.
WGK Germany: 3
RTECS: CU3485000
Questionable carcinogen with experimental tumorigenic data. Mutation data reported. When heated to decomposition it emits toxic fumes of NO_x.

  6,9-Dimethyl-1,2-benzacridine , its cas register number is 2381-40-0. It also can be called 2,10-Dimethyl-7,8-benzacridine ; 5-20-08-00539 (Beilstein Handbook Reference) ; 7,10-Dimethylbenz(c)acridine ; BRN 0192194 ; CCRIS 991 . 6,9-Dimethyl-1,2-benzacridine (CAS NO.2381-40-0) is harmful by inhalation, in contact with skin and if swallowed. And it's also irritating to eyes and skin. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.