Molecular structure of 6-Methoxy-3,4-dihydro-7-isoquinolinol (CAS NO.4602-73-7) is:

Product Name: 6-Methoxy-3,4-dihydro-7-isoquinolinol 
CAS Registry Number: 4602-73-7
IUPAC Name: 6-methoxy-3,4-dihydroisoquinolin-7-ol
Molecular Weight: 177.19984 [g/mol]
Molecular Formula: C₁₀H₁₁NO₂
XLogP3-AA: 0.9
H-Bond Donor: 1
H-Bond Acceptor: 3
Melting point: 187-191°C
Index of Refraction: 1.59
Molar Refractivity: 48.64 cm³
Molar Volume: 144 cm³
Surface Tension: 42.5 dyne/cm
Density: 1.22 g/cm³
Flash Point: 169.1 °C
Enthalpy of Vaporization: 62.49 kJ/mol
Boiling Point: 356 °C at 760 mmHg
Vapour Pressure: 1.47E-05 mmHg at 25°C

Safty information about 6-Methoxy-3,4-dihydro-7-isoquinolinol (CAS NO.4602-73-7) is:
Hazard Codes: Xn
Risk Statements: 36/38-21/22 
R36/38:Irritating to eyes and skin. 
R21/22:Harmful in contact with skin and if swallowed.
Safety Statements: 36/37/39-26
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection. 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.

 6-Methoxy-3,4-dihydro-7-isoquinolinol , its cas register number is 4602-73-7. It also can be called 7-Isoquinolinol,3,4-dihydro-6-methoxy- ; NSC 627589 ; 7-Hydroxy-6-Methoxy-3,4-Dihydroisoquinoline ; 3,4-Dihydro-7-Hydroxy-6-Methoxyisoquinoline ; 6-Methoxy-7-hydroxy-3,4-dihydro-isoquinoline .It is a yellow crystalline powder and flakes , and it can soluble in hot water.