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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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

Aldehydes

Carbonyl Compounds

Fluorobenzene

Carbonyl Compounds

Aromatic Aldehydes & Derivatives (substituted)

Aromatic compound

Fluorin-contained benzaldehyde series

Benzaldehyde

Miscellaneous