2,4-Difluorobenzonitrile
- Product Name
- 2,4-Difluorobenzonitrile
- CAS No.
- 3939-09-1
- Chemical Name
- 2,4-Difluorobenzonitrile
- Synonyms
- 0/1/39;CASNO: 3939-9-1;2,4-Difluorobenzonit;2-difluorobenzotrile;4-Difluorobenzonitrile;2，4-difluorobenzotrile;2,4-Difuorobenzonitrile;2,4-DIFLUOROBENZONITRILE;2,4-difluorobenzonilyile;2,4-Difluorobenzonitrile,98%
- CBNumber
- CB5754551
- Molecular Formula
- C7H3F2N
- Formula Weight
- 139.1
- MOL File
- 3939-09-1.mol
2,4-Difluorobenzonitrile Property
- Melting point:
- 47-49 °C (lit.)
- Boiling point:
- 189°C
- Density
- 1.246
- Flash point:
- >230 °F
- storage temp.
- Sealed in dry,Room Temperature
- solubility
- soluble in Methanol
- form
- Crystalline
- color
- White to Almost white
- BRN
- 1940316
- InChI
- InChI=1S/C7H3F2N/c8-6-2-1-5(4-10)7(9)3-6/h1-3H
- InChIKey
- LJFDXXUKKMEQKE-UHFFFAOYSA-N
- SMILES
- C(#N)C1=CC=C(F)C=C1F
- CAS DataBase Reference
- 3939-09-1(CAS DataBase Reference)
Safety
- Hazard Codes
- Xn,T,Xi
- Risk Statements
- 20/21/22-36/37/38
- Safety Statements
- 26-37/39-36/37/39-36/37
- RIDADR
- UN3439
- WGK Germany
- 3
- Hazard Note
- Toxic
- HazardClass
- 6.1
- HS Code
- 29269090
- Storage Class
- 11 - Combustible Solids
- Hazard Classifications
- Acute Tox. 4 Dermal
Acute Tox. 4 Inhalation
Acute Tox. 4 Oral
Eye Irrit. 2
Skin Irrit. 2
STOT SE 3
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- 264326
- Product name
- 2,4-Difluorobenzonitrile
- Purity
- 97%
- Packaging
- 25g
- Price
- $33.66
- Updated
- 2024/03/01
- Product number
- 264326
- Product name
- 2,4-Difluorobenzonitrile
- Purity
- 97%
- Packaging
- 5g
- Price
- $25
- Updated
- 2023/06/20
- Product number
- D1826
- Product name
- 2,4-Difluorobenzonitrile
- Purity
- >98.0%(GC)
- Packaging
- 5g
- Price
- $29
- Updated
- 2025/07/31
- Product number
- D1826
- Product name
- 2,4-Difluorobenzonitrile
- Purity
- >98.0%(GC)
- Packaging
- 25g
- Price
- $83
- Updated
- 2025/07/31
- Product number
- D445515
- Product name
- 2,4-Difluorobenzonitrile
- Packaging
- 25g
- Price
- $140
- Updated
- 2021/12/16
2,4-Difluorobenzonitrile Chemical Properties,Usage,Production
Chemical Properties
white crystalline solid
Uses
2,4-Difluorobenzonitrile has been used in the synthesis of:
- 2-methylsulfonyl-4-fluorobenzylamine
- fluoro-3-amino-1,2-benzisoxazoles
General Description
2,4-Difluorobenzonitrile undergoes polycondensation with Bisphenol A and matrix-assisted laser desorption/time-of-flight mass spectra revealed a quantitative formation of cyclic oligoethers and polyethers.
Synthesis
85118-02-1
3939-09-1
General procedure for the synthesis of 2,4-difluorobenzonitrile from 2,4-difluorobenzamide: In a 250 mL three-necked flask, 2,4-difluorobenzamide (23.0 g, 146.2 mmol) was dissolved in dry N,N-dimethylformamide (80 mL), and cooled to -15°C. The reaction was continued for 0.5 h at room temperature. Phosphorus oxychloride (112.1 g, 730.9 mmol) was slowly added dropwise and the reaction was kept for 0.5 h. The reaction was then continued for 7 h at room temperature. Upon completion of the reaction, the reaction solution was slowly poured into a vessel containing ice to induce precipitation of solids. Finally, 17.0 g of 2,4-difluorobenzonitrile was obtained in 83.4% yield.
References
[1] Patent: CN106854165, 2017, A. Location in patent: Paragraph 0104; 0105; 0136; 0137
2,4-Difluorobenzonitrile Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 2,4-Difluorobenzonitrile manufacturers
- Product
- 2,4-Difluorobenzonitrile 3939-09-1
- Price
- US $1.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 2000ton
- Release date
- 2024-05-11
- Product
- good quality 2,4-Dif 4-(Trifluoromethoxy) 3939-09-1
- Price
- US $11.90/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 500ton/Month
- Release date
- 2021-07-29
- Product
- 2,4-Difluorobenzonitrile 3939-09-1
- Price
- US $1.00/kg
- Min. Order
- 1kg
- Purity
- 99%
- Supply Ability
- Customized
- Release date
- 2018-12-14