IUPAC Name: 6,7-Dihydro-5H-cyclopenta[b]pyridine
Synonyms of 2,3-Cyclopenopyridine (CPPY) (CAS NO.533-37-9): 6,7-Dihydro-5H-cyclopenta(b)pyridine
CAS NO: 533-37-9
Molecular Formula: C₈H₉N
Molecular Weight: 119.16
Molecular Structure:
EINECS: 208-564-1
H bond acceptors: 1
H bond donors: 0
Freely Rotating Bonds: 0
Polar Surface Area: 12.89Ų
Index of Refraction: 1.567
Molar Refractivity: 36.51 cm³
Molar Volume: 111.7 cm³
Surface Tension: 43.8 dyne/cm
Density: 1.066 g/cm³
Flash Point: 67.2 °C
Enthalpy of Vaporization: 43.02 kJ/mol
Boiling Point: 212.2 °C at 760 mmHg
Vapour Pressure: 0.255 mmHg at 25°C 
Appearance: clear colorless to brownish liquid
Product Categories of 2,3-Cyclopenopyridine (CPPY) (CAS NO.533-37-9): Pyridines derivates;API intermediates 
SMILES: n1cccc2c1CCC2
InChI: InChI=1/C8H9N/c1-3-7-4-2-6-9-8(7)5-1/h2,4,6H,1,3,5H2
InChIKey: KRNSYSYRLQDHDK-UHFFFAOYAU
Std. InChI: InChI=1S/C8H9N/c1-3-7-4-2-6-9-8(7)5-1/h2,4,6H,1,3,5H2
Std. InChIKey: KRNSYSYRLQDHDK-UHFFFAOYSA-N

Safety Information about 2,3-Cyclopenopyridine (CPPY) (CAS NO.533-37-9):
Hazard Codes: Xi
Risk Statements: 36/37/38 
R36/37/38: Irritating to eyes, respiratory system and skin.
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