1H-Indole-7-carbonitrile,2,3-dihydro-2-oxo- (380427-40-7)

     7-Cyanooxindole , with CAS register number 380427-40-7, has the IUPAC name: 2-oxo-1,3-dihydroindole-7-carbonitrile . In addition, it is also known as 2-Oxo-1,3-dihydroindole-7-carbonitrile , or 2-Oxoindoline-7-carbonitrile .

     It is a kind of chemical with the index of refraction 1.632,  molar refractivity 42.29 cm³ and molar Volume 118.4 cm³. And its polarizability is 16.76 ×10-24cm3 and surface tension 62.8 dyne/cm. Except these physical porperties, it also has the enthalpy of vaporization 64 kJ/mol and  vapour pressure 2.63E-06 mmHg at 25°C. 

     It belongs to the chemical category of indoline & oxindole. Being a kind of irritant chemical, it may cause inflammation to the skin or other mucous membranes.And it is usually being used in the applications of pharmaceutical intermediates.

     You could convert the following chaining to chemical structure:
      Smiles:
          N#Cc1cccc2c1NC(=O)C2 Copy
      Inchi:
          InChI=1/C9H6N2O/c10-5-7-3-1-2-6-4-8(12)11-9(6)7/h1-3H,4H2,(H,11,12) Copy