The CAS register number of 4H-Cyclopenta[b]thiophene-3-carbonitrile,2-amino-5,6-dihydro- is 70291-62-2. It also can be called as 2-Amino-3-cyano-5,6-dihydro-4H-cyclopenta[b]thiophene and the IUPAC name about this chemical is 2-amino-5,6-dihydro-4H-cyclopenta[b]thiophene-3-carbonitrile. The molecular formula about this chemical is C₈H₈N₂S and the molecular weight is 164.23.

Physical properties about 4H-Cyclopenta[b]thiophene-3-carbonitrile,2-amino-5,6-dihydro- are: (1)ACD/LogP: 2.20; (2)#H bond acceptors: 2; (3)#H bond donors: 2; (4)#Freely Rotating Bonds: 1; (5)Polar Surface Area: 55.27Ų; (6)Index of Refraction: 1.649; (7)Molar Refractivity: 44.91 cm³; (8)Molar Volume: 123.2 cm³; (9)Polarizability: 17.8x10^-24cm³; (10)Surface Tension: 67.2 dyne/cm; (11)Enthalpy of Vaporization: 62.8 kJ/mol; (12)Boiling Point: 379.9 °C at 760 mmHg; (13)Vapour Pressure: 5.64E-06 mmHg at 25°C.

You can still convert the following datas into molecular structure:
(1)SMILES: N#Cc1c2c(sc1N)CCC2
(2)InChI: InChI=1/C8H8N2S/c9-4-6-5-2-1-3-7(5)11-8(6)10/h1-3,10H2
(3)InChIKey: RILAXFOADRDGPQ-UHFFFAOYAF
(4)Std. InChI: InChI=1S/C8H8N2S/c9-4-6-5-2-1-3-7(5)11-8(6)10/h1-3,10H2
(5)Std. InChIKey: RILAXFOADRDGPQ-UHFFFAOYSA-N