The 3,4-Difluorobenzonitrile, with the CAS registry number 64248-62-0, is also known as 4-Cyano-1,2-difluorobenzene. It belongs to the product categories of Nitrile; Trifluoromethoxybenzene Series; Fluorobenzene; Miscellaneous; Fluorine Compounds; Nitriles; Pesticide Intermediate; C6 to C7; Cyanides/Nitriles; Nitrogen Compounds. Its EINECS registry number is 264-751-8. This chemical's molecular formula is C₇H₃F₂N and molecular weight is 139.1. Its IUPAC name is called 3,4-difluorobenzonitrile. This chemical is white to light yellow crystal powder.

Physical properties of 3,4-Difluorobenzonitrile: (1)ACD/LogP: 1.60; (2)# of Rule of 5 Violations: 0; (3)ACD/LogD (pH 5.5): 1.602; (4)ACD/LogD (pH 7.4): 1.602; (5)ACD/BCF (pH 5.5): 9.718; (6)ACD/BCF (pH 7.4): 9.718; (7)ACD/KOC (pH 5.5): 177.232; (8)ACD/KOC (pH 7.4): 177.232; (9)#H bond acceptors: 1; (10)#H bond donors: 0; (11)#Freely Rotating Bonds: 0; (12)Index of Refraction: 1.486; (13)Molar Refractivity: 31.545 cm³; (14)Molar Volume: 109.792 cm³; (15)Surface Tension: 35.355 dyne/cm; (16)Density: 1.267 g/cm³; (17)Flash Point: 69.444 °C; (18)Enthalpy of Vaporization: 42.549 kJ/mol; (19)Boiling Point: 189.278 °C at 760 mmHg; (20)Vapour Pressure: 0.574 mmHg at 25°C.

Preparation: this chemical can be prepared by 4-chloro-3-nitro-benzonitrile. This reaction will need reagent KF, PPh₄Br, Phthaloyldichloride and solvent tetrahydrothiophene 1,1-dioxide, toluene. The reaction time is 2 hours with reaction temperature of 180 ℃. The yield is about 65%.

Uses of 3,4-Difluorobenzonitrile: it can be used to produce 4-dimethylamino-3-fluoro-benzonitrile at ambient temperature. This reaction will need solvent dimethylformamide. The yield is about 99%.

When you are using this chemical, please be cautious about it as the following:
This chemical may cause damage to health and may cause inflammation to the skin or other mucous membranes. It is harmful by inhalation, in contact with skin and if swallowed. In addition, it is irritating to eyes, respiratory system and skin. In case of contact with eyes, you should rinse immediately with plenty of water and seek medical advice. Whenever you will contact it, please wear suitable protective clothing, gloves and eye/face protection.

You can still convert the following datas into molecular structure:
(1)Canonical SMILES: C1=CC(=C(C=C1C#N)F)F
(2)InChI: InChI=1S/C7H3F2N/c8-6-2-1-5(4-10)3-7(6)9/h1-3H
(3)InChIKey: BTBFCBQZFMQBNT-UHFFFAOYSA-N