2,3-Difluorobenzaldehyde
- Product Name
- 2,3-Difluorobenzaldehyde
- CAS No.
- 2646-91-5
- Chemical Name
- 2,3-Difluorobenzaldehyde
- Synonyms
- TIMTEC-BB SBB006572;2,3-Difluorobenzalde;2,3-fluorobenzaldehyde;2,5-DIFLUOROBENALDEHYDE;2,3-DIFLUOROBENZALDEHYDE;2,3-Difluorobenzaldehyde>Benzaldehyde, 2,3-difluoro-;2,3-Difluorobenzaldehyde 98%;2,3-Difluorobenzaldehyde,98%;2,3- twofluorobenzeneforMaldehyde
- CBNumber
- CB8689830
- Molecular Formula
- C7H4F2O
- Formula Weight
- 142.1
- MOL File
- 2646-91-5.mol
2,3-Difluorobenzaldehyde Property
- Melting point:
- 64-65 °C
- Boiling point:
- 64-65 °C/17 mmHg (lit.)
- Density
- 1.301 g/mL at 25 °C (lit.)
- refractive index
- n20/D 1.499(lit.)
- Flash point:
- 137 °F
- storage temp.
- Inert atmosphere,2-8°C
- form
- Liquid
- Specific Gravity
- 1.301
- color
- Clear pale yellow
- Sensitive
- Air Sensitive
- BRN
- 2961554
- InChI
- InChI=1S/C7H4F2O/c8-6-3-1-2-5(4-10)7(6)9/h1-4H
- InChIKey
- WDBAXYQUOZDFOJ-UHFFFAOYSA-N
- SMILES
- C(=O)C1=CC=CC(F)=C1F
- CAS DataBase Reference
- 2646-91-5(CAS DataBase Reference)
Safety
- Hazard Codes
- Xi
- Risk Statements
- 36/37/38
- Safety Statements
- 26-37/39-36/37
- RIDADR
- UN 1989 3/PG 3
- WGK Germany
- 3
- Hazard Note
- Irritant
- HazardClass
- 3
- PackingGroup
- III
- HS Code
- 29130000
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H226Flammable liquid and vapour
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P302+P352IF ON SKIN: wash with plenty of soap and water.
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
- 265144
- Product name
- 2,3-Difluorobenzaldehyde
- Purity
- 98%
- Packaging
- 5g
- Price
- $54.5
- Updated
- 2023/01/07
- Product number
- D2614
- Product name
- 2,3-Difluorobenzaldehyde
- Purity
- >97.0%(GC)
- Packaging
- 5g
- Price
- $80
- Updated
- 2025/07/31
- Product number
- D2614
- Product name
- 2,3-Difluorobenzaldehyde
- Purity
- >97.0%(GC)
- Packaging
- 25g
- Price
- $280
- Updated
- 2025/07/31
- Product number
- D445555
- Product name
- 2,3-Difluorobenzaldehyde
- Packaging
- 50g
- Price
- $305
- Updated
- 2021/12/16
- Product number
- HCH0017463
- Product name
- 2,3-DIFLUOROBENZALDEHYDE
- Purity
- 95.00%
- Packaging
- 5G
- Price
- $802.73
- Updated
- 2021/12/16
2,3-Difluorobenzaldehyde Chemical Properties,Usage,Production
Chemical Properties
clear pale yellow liquid
Uses
2,3-Difluorobenzaldehyde was used in the synthesis of aminophosphine.
General Description
The emission and absorption spectra of 2,3-difluorobenzaldehyde were studied.
Synthesis
3828-49-7
2646-91-5
The general steps for the synthesis of 2,3-difluorobenzaldehyde from 2,3-difluorotoluene are as follows: (1) Preparation of the device: connect the tubular reactor as shown in Fig. 2, and choose a combination of pipes with (3a + 3c) DC channels and inclined square pancake-type variable diameter flat pipes. Determine the pipe diameter and volume according to the experimental needs. (2) Solution preparation: 6.06 g of cobalt acetate and 6.06 g of sodium molybdate were dissolved in 200 mL of acetic acid containing 200 mg of 2,3-difluorotoluene to form a mixed solution, ensuring that n (cobalt acetate): n (2,3-difluorotoluene) = 0.015:1. Meanwhile, 6.06 g of sodium bromide was dissolved in 35% H2O2 to prepare a H2O2-acetic acid solution, adjusting n (sodium bromide): n(2,3-difluorotoluene) = 0.015: 1. (3) Reaction process: 2,3-difluorotoluene-acetic acid solution and H2O2-acetic acid solution were injected into a continuous heat exchanger tubular reactor through a constant-flow pump at a flow rate of 5.56 ml/min and 11.11 ml/min, respectively, to ensure that n(H2O2): n(2,3-difluorotoluene) = 2:1. The reaction was carried out in a microchannel reactor with a set reaction temperature of 120 °C and a residence time of 1500 s. (4) Post-treatment: after completion of the reaction, the outlet material was cooled and the reaction was quenched with dichloromethane. The conversion of 2,3-difluorotoluene was determined to be 65.1% and the yield of 2,3-difluorobenzaldehyde was 48.2% by GC analysis.
References
[1] Patent: CN106748682, 2017, A. Location in patent: Paragraph 0052-0054
[2] Kogyo Kagaku Zasshi, 1956, vol. 59, p. 1160
[3] Chem.Abstr., 1958, p. 13265
2,3-Difluorobenzaldehyde Preparation Products And Raw materials
Raw materials
Preparation Products
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View Lastest Price from 2,3-Difluorobenzaldehyde manufacturers
- Product
- 2,3-Difluorobenzaldehyde 2646-91-5
- Price
- US $10.00/KG
- Min. Order
- 1KG
- Purity
- 99%
- Supply Ability
- 10 mt
- Release date
- 2024-11-20
- Product
- 2,3-Difluorobenzaldehyde 2646-91-5
- Price
- US $15.00-10.00/KG
- Min. Order
- 1KG
- Purity
- 99%+ HPLC
- Supply Ability
- Monthly supply of 1 ton
- Release date
- 2021-07-10
- Product
- 2,3-Difluorobenzaldehyde 2646-91-5
- Price
- US $15.00-10.00/KG
- Min. Order
- 1KG
- Purity
- 99%+ HPLC
- Supply Ability
- Monthly supply of 1 ton
- Release date
- 2021-07-09