ChemicalBook > CAS DataBase List > 2,3-Difluorobenzaldehyde

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
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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)
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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
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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.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
265144
Product name
2,3-Difluorobenzaldehyde
Purity
98%
Packaging
5g
Price
$54.5
Updated
2023/01/07
TCI Chemical
Product number
D2614
Product name
2,3-Difluorobenzaldehyde
Purity
>97.0%(GC)
Packaging
5g
Price
$80
Updated
2025/07/31
TCI Chemical
Product number
D2614
Product name
2,3-Difluorobenzaldehyde
Purity
>97.0%(GC)
Packaging
25g
Price
$280
Updated
2025/07/31
TRC
Product number
D445555
Product name
2,3-Difluorobenzaldehyde
Packaging
50g
Price
$305
Updated
2021/12/16
American Custom Chemicals Corporation
Product number
HCH0017463
Product name
2,3-DIFLUOROBENZALDEHYDE
Purity
95.00%
Packaging
5G
Price
$802.73
Updated
2021/12/16
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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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2,3-Difluorobenzaldehyde Suppliers

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View Lastest Price from 2,3-Difluorobenzaldehyde manufacturers

Hebei Chuanghai Biotechnology Co., Ltd
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
Zhuozhou Wenxi import and Export Co., Ltd
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
Zhuozhou Wenxi import and Export Co., Ltd
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

2646-91-5, 2,3-DifluorobenzaldehydeRelated Search:

1,2-Difluorobenzene Transfluthrin 4-Fluorobenzaldehyde 1,3-Difluorobenzene Florfenicol 3,4-DIFLUOROBENZALDEHYDE,3,4-Difluorobenzaldehyde,98%,3,4-Difluorobenzaldehyde 98% 2,6-DIFLUOROBENZALDEHYDE,2,6-Difluorobenzaldehyde 98%,2,6-Difluorobenzaldehyde,97% 2,4-Difluorobenzaldehyde 98%,2,4-Difluorobenzaldehyde98%,2,4-DIFLUOROBENZALDEHYDE 2,3,4,5-Tetrafluorobenzoic acid 2,3-Difluorobenzoic acid Pentafluorobenzaldehyde 4-AMINO-2,3,5,6-TETRAFLUOROBENZAMIDE ETHYL PENTAFLUOROBENZOATE Pentafluorobenzoic acid 2,3,5,6-TETRAFLUORO-4-METHYLBENZOIC ACID 2,3,5,6-Tetrafluorobenzoic acid Tetrafluoroterephthalic acid Tetrafluorophthalic acid

  • 2,3-DIFLUOROBENZALDEHYDE
  • TIMTEC-BB SBB006572
  • 2,3-Difluorobenzaldehyde,98%
  • 2,3-Difluorobenzaldehyde 98%
  • 2,5-DIFLUOROBENALDEHYDE
  • 2,3-fluorobenzaldehyde
  • 2,3- twofluorobenzeneforMaldehyde
  • Benzaldehyde, 2,3-difluoro-
  • 2,3-Difluorobenzalde
  • 2,3-Difluorobenzaldehyde&gt
  • 2,3-Difluorobenzaldehyde ISO 9001：2015 REACH
  • 3,5-Dichloro-2',2',3'-trifluoroacetophenone
  • 2646-91-5
  • 2649-91-5
  • 2646-35-2
  • Organic Building Blocks
  • ALDEHYDE
  • Building Blocks
  • Aldehydes
  • Carbonyl Compounds
  • C7
  • Aldehydes
  • C7
  • Carbonyl Compounds
  • Fluorobenzene
  • Carbonyl Compounds
  • Aromatic Aldehydes & Derivatives (substituted)
  • Aromatic compound
  • Fluorin-contained benzaldehyde series
  • Benzaldehyde
  • Miscellaneous