IUPAC Name: 2-(2,3-Dichlorophenyl)acetonitrile 
Following is the structure of 2,3-Dichlorophenylacetonitrile (CAS NO.3218-45-9):
                         
Empirical Formula: C₈H₅Cl₂N
Molecular Weight: 186.038 g/mol
Molar Refractivity: 45.5 cm³
Molar Volume: 139.5 cm³
Density: 1.333 g/cm³
Flash Point: 125.9 °C
Melting point 66-69 °C
Index of Refraction: 1.565
Surface Tension: 46.2 dyne/cm
Enthalpy of Vaporization: 52.89 kJ/mol
Boiling Point: 289.6 °C at 760 mmHg
Vapour Pressure: 0.00218 mmHg at 25 °C
Product Categories of 2,3-Dichlorophenylacetonitrile (CAS NO.3218-45-9): Aromatic Nitriles
Appearance of 2,3-Dichlorophenylacetonitrile (CAS NO.3218-45-9): white crystalline powder
Canonical SMILES: C1=CC(=C(C(=C1)Cl)Cl)CC#N
InChI: InChI=1S/C8H5Cl2N/c9-7-3-1-2-6(4-5-11)8(7)10/h1-3H,4H2
InChIKey: CZLINJDTCHACEH-UHFFFAOYSA-N

Hazard Codes: Xn
Risk Statements: 36/37/38-20/21/22 
R36/37/38:Irritating to eyes, respiratory system and skin. 
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed.
Safety Statements: 36/37/39-26-22 
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. 
S22:Do not breathe dust.
RIDADR: 3439

 2,3-Dichlorophenylacetonitrile , its cas register number is 3218-45-9. It also can be called 2,3-Dichlorobenzyl cyanide ; and Benzeneacetonitrile, 2,3-dichloro- .