Molecular structure of N-Boc-Nortropinone (CAS NO.185099-67-6) is:

Product Name: N-Boc-Nortropinone
CAS Registry Number: 185099-67-6
IUPAC Name: tert-butyl 3-Oxo-8-azabicyclo[3.2.1]octane-8-carboxylate
Molecular Weight: 225.28416 [g/mol]
Molecular Formula: C₁₂H₁₉NO₃
XLogP3-AA: 1.2
H-Bond Donor: 0
H-Bond Acceptor: 3
Melting Point: 70-74 °C
Surface Tension: 41.1 dyne/cm
Density: 1.139 g/cm³
Flash Point: 150.8 °C
Enthalpy of Vaporization: 56.79 kJ/mol
Boiling Point: 325.8 °C at 760 mmHg
Vapour Pressure: 0.000225 mmHg at 25°C
Product Categories: pharmacetical; Heterocyclic Compounds; Heterocycle; Various Intermediates; Heterocycles; Intermediates; Intermediates & Fine Chemicals; Pharmaceuticals; Fused Ring Systems

 N-Boc-Nortropinone (CAS NO.185099-67-6) derivative useful as opioid receptor modulator.

Safty information about N-Boc-Nortropinone (CAS NO.185099-67-6) is:
Hazard Codes: Xi
Risk Statements: 41-36/37/38 
R41:Risk of serious damage to the eyes. 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-39 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S39:Wear eye / face protection.
WGK Germany: 3
Hazard Note: Irritant

 N-Boc-Nortropinone , its cas register number is 185099-67-6. It also can be called tert-Butyl 3-oxo-8-azabicyclo[3.2.1]octane-8-carboxylate .It is a off-white solid.