Molecular structure of 8-Methoxy-2-tetralone (CAS NO.5309-19-3) is:

Product Name: 8-Methoxy-2-tetralone
CAS Registry Number: 5309-19-3
IUPAC Name: 8-methoxy-3,4-dihydro-1H-naphthalen-2-one
Molecular Weight: 176.21178 [g/mol]
Molecular Formula: C₁₁H₁₂O₂
XLogP3-AA: 1.6
H-Bond Donor: 0
H-Bond Acceptor: 2
Melting Point: 48-55 °C(lit.)
Molar Volume: 156.7 cm³
Surface Tension: 40.8 dyne/cm
Density: 1.124 g/cm³
Flash Point: 158.1 °C
Enthalpy of Vaporization: 57.26 kJ/mol
Boiling Point: 330 °C at 760 mmHg
Vapour Pressure: 0.000171 mmHg at 25°C
Product Categories: Fused Ring Systems;C₁₁ to C₁₂;Carbonyl Compounds;Ketones

Safty information about 8-Methoxy-2-tetralone (CAS NO.5309-19-3) is:
Hazard Codes: Xn,Xi
Risk Statements: 22 
R22:Harmful if swallowed.
Safety Statements: 26-36 
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
Hazard Note: Irritant

 8-Methoxy-2-tetralone , its cas register number is 5309-19-3. It also can be called 2(1H)-Naphthalenone, 3,4-Dihydro-8-Methoxy- ; 8-Methoxy-3,4-Dihydronaphthalen-2(1h)-One; 8-Methoxy-3,4-Dihydro-1h-Naphthalen-2-One ; 3,4-Dihydro-8-methoxynaphthalen-2(1H)-one .