2,6-Difluorobenzonitrile CAS 1897-52-5

Introduction:Basic information about 2,6-Difluorobenzonitrile CAS 1897-52-5, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.

2,6-Difluorobenzonitrile Basic information

Product Name:2,6-Difluorobenzonitrile
Synonyms:2,6-DIFLUOROBENZONIT;p-Phenylenediamine(1,4-Phenylenediamine);2,6-DIFLUOROBENZONITRILE, 97+%;2,6-DIFLUOROBENZNITRILE,97%;2,6-Difluorobenzonitrile99%;2,6-Difluoro carbonitrile;6-Difluorobenzonitrile;2,6-Difluorobenzonitrle
CAS:1897-52-5
MF:C7H3F2N
MW:139.1
EINECS:217-589-7
Product Categories:C6 to C7;Cyanides/Nitriles;Nitrogen Compounds;Aromatic Nitriles;Fluorobenzene;Nitrile;Fluorine series;OLED
Mol File:1897-52-5.mol

2,6-Difluorobenzonitrile Chemical Properties

Melting point 25-28 °C (lit.)
Boiling point 197-198 °C
density 1.246 g/mL at 25 °C (lit.)
vapor pressure 18Pa at 20℃
refractive index n20/D 1.4875(lit.)
Fp 176 °F
storage temp. Sealed in dry,Room Temperature
solubility DMSO (Slightly), Methanol (Slightly)
form Solid
color Off-White
OdorAlmond-like odor
Water Solubility 1.87g/L at 19.85℃
BRN 2045292
InChI1S/C7H3F2N/c8-6-2-1-3-7(9)5(6)4-10/h1-3H
InChIKeyBNBRIFIJRKJGEI-UHFFFAOYSA-N
SMILESFc1cccc(F)c1C#N
LogP1.9
CAS DataBase Reference1897-52-5(CAS DataBase Reference)
NIST Chemistry ReferenceBenzonitrile, 2,6-difluoro-(1897-52-5)
EPA Substance Registry SystemBenzonitrile, 2,6-difluoro- (1897-52-5)

Safety Information

Hazard Codes Xn,T,Xi
Risk Statements 20/21/22-36/37/38
Safety Statements 26-36-36/37/39
RIDADR 3439
WGK Germany 3
Hazard Note Toxic
TSCA TSCA listed
HazardClass 6.1
PackingGroup III
HS Code 29269095
Storage Class11 - Combustible Solids
Hazard ClassificationsAcute Tox. 4 Dermal
Acute Tox. 4 Inhalation
Acute Tox. 4 Oral
Eye Irrit. 2
Skin Irrit. 2
STOT SE 3

2,6-Difluorobenzonitrile Usage And Synthesis

Chemical Propertieswhite to light yellow crystal powder
Uses2,6-Difluorobenzonitrile was used in the synthesis of:
  • poly(cyanoaryl ethers) via silyl-method
  • 2-dimethylamino-6-fluorobenzamide
  • phenolphthalein-modified polyarylene ether nitrile copolymers
Uses2,6-Difluorobenzonitrile is a halogenated benzonitrile with fungacidal activity. 2,6-Difluorobenzonitrile is the difluoro analogue of the herbicide Dichlobenil.
Flammability and ExplosibilityNon flammable
Synthesis2,6-Difluorobenzonitrile [1897-52-5], 1- cyano-2,6-difluorobenzene, Mr 172.02, mp 29 – 30℃, forms colorless crystals. The nitrile can be produced by treatment of 2,6-dichlorobenzonitrile with potassium fluoride in sulfolane and is used as an intermediate in the synthesis of insecticides (e.g., Dimilin, Shell).
Toxics Screening LevelThe initial threshold screening level (ITSL) for 2,6-difluorobenzonitrile (DFBN) is 0.2 μg/m3 based on an annual averaging time.

2,6-Difluorobenzonitrile Preparation Products And Raw materials

Raw materialsPotassium fluoride-->Gamma Butyrolactone-->Sulfolane-->2,6-Dichlorobenzonitrile-->3-CHLORO-2,6-DIFLUOROBENZONITRILE-->2,6-DIFLUOROBENZALDEHYDE OXIME-->2,6-Difluorobenzylamine-->tetrakis(N,N-DIethylaMino)phosphorus broMide
Preparation ProductsChlorfluazuron-->2,6-Difluorobenzamide-->Diflubenzuron-->3-Bromo-2,6-difluorobenzonitrile-->3-Bromo-2,6-difluorobenzamide-->5-tert-butoxyquinazoline-2,4-diaMine-->tasquinimod-->2-amino-6-bromobenzonitrile-->2-FLUORO-6-(4-METHYLPHENOXY)BENZONITRILE-->2-FLUORO-6-(4-METHYLBENZYLOXY)BENZONITRILE-->2,6-Difluorobenzoyl isocyanate-->Benzonitrile, 2-fluoro-6-(phenylthio)-
2,6-Difluorobenzenesulfonyl chloride CAS 60230-36-6
2,6-Difluorobenzyl bromide CAS 85118-00-9
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