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(4-Fluoro-phenyl)-oxo-acetaldehyde

CAS No.
403-32-7
Chemical Name:
(4-Fluoro-phenyl)-oxo-acetaldehyde
Synonyms
NSC 402742;4-FLUOROPHENYLGLYOXAL;(p-Fluorophenyl)glyoxal;(4-Fluoro-phenyl)-oxo-acetaldehyde;4-Fluoro-α-oxo-benzeneacetaldehyde;Benzeneacetaldehyde, 4-fluoro-α-oxo-;4-fluoro-alpha-oxobenzeneacetaldehyde;4-fluoro-alpha-oxo-benzeneacetaldehyd;Benzeneacetaldehyde, 4-fluoro-.alpha.-oxo-;4-Fluoro-α-oxo-benzeneacetaldehyde, CAS 403-32-7
CBNumber:
CB8388962
Molecular Formula:
C8H5FO2
Molecular Weight:
152.12
MDL Number:
MFCD01733156
MOL File:
403-32-7.mol
MSDS File:
SDS
Last updated:2026-09-12 18:55:42

(4-Fluoro-phenyl)-oxo-acetaldehyde Properties

Melting point 84-88℃
Boiling point 115℃/35mm
Density 1.241±0.06 g/cm3(Predicted)
RTECS CY1440000
solubility Chloroform, Methanol
form Solid
color White

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P280a-P304+P340-P305+P351+P338-P405-P501a
Risk Statements  36/37/38
Safety Statements  26-36/37/39
Toxicity mouse,LD50,intraperitoneal,681mg/kg (681mg/kg),BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY)LUNGS, THORAX, OR RESPIRATION: RESPIRATORY DEPRESSION,Journal of the Indian Chemical Society. Vol. 60, Pg. 369, 1983.
NFPA 704
1
2 0

(4-Fluoro-phenyl)-oxo-acetaldehyde price More Price(18)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
aablocks AA003LDF (4-Fluorophenyl)glyoxal 98% 403-32-7 1g $18 2026-05-28 Buy
aablocks AA003LDF (4-Fluorophenyl)glyoxal 98% 403-32-7 5g $23 2026-05-28 Buy
aablocks AA003LDF (4-Fluorophenyl)glyoxal 98% 403-32-7 25g $84 2026-05-28 Buy
aablocks AA003LDF (4-Fluorophenyl)glyoxal 98% 403-32-7 100g $274 2026-05-28 Buy
aablocks AA003LDF (4-Fluorophenyl)glyoxal 98% 403-32-7 500g $1074 2026-05-28 Buy
Product number Packaging Price Buy
AA003LDF 1g $18 Buy
AA003LDF 5g $23 Buy
AA003LDF 25g $84 Buy
AA003LDF 100g $274 Buy
AA003LDF 500g $1074 Buy

(4-Fluoro-phenyl)-oxo-acetaldehyde Chemical Properties, Uses, Production

Chemical Properties

White Solid

Uses

4-Fluoro-α-oxo-benzeneacetaldehyde (cas# 403-32-7) is a compound useful in organic synthesis.

Synthesis

4-Fluoroacetophenone

403-42-9

(4-FLUORO-PHENYL)-OXO-ACETALDEHYDE

403-32-7

The general procedure for the synthesis of 4-fluorobenzoylformaldehyde from 4-fluoroacetophenone was as follows: selenium dioxide (6.70 g, 61.0 mmol) was added to a mixed solution of dioxane (100 mL) and water (3 mL) containing 4-fluoroacetophenone (8.43 g, 61.0 mmol). The resulting mixture was heated at 55 °C until selenium dioxide was completely dissolved. Subsequently, the reaction mixture was refluxed for 5 to 6 hours. After monitoring the completion of the reaction by thin layer chromatography (TLC), the mixture was filtered and the filtrate was concentrated under vacuum to obtain a viscous oily substance. Water (50 mL) was added to the oily substance and the resulting mixture was stirred for 12 hours. Afterwards, the solid formed was collected on a filter, washed with water (25 mL) and dried under vacuum to finally obtain 4-fluorophenylglyoxal (6.60 g, 85% yield).1H NMR (400 MHz, CDCl3) δ: 7.18 (m, 2H), 8.11 (d, 2H), no signal for aldehyde CHO was observed.

References

[1] Patent: WO2011/95625, 2011, A1. Location in patent: Page/Page column 94
[2] Tetrahedron Letters, 2017, vol. 58, # 7, p. 658 - 662
[3] Patent: WO2007/39821, 2007, A2. Location in patent: Page/Page column 16
[4] Journal of Heterocyclic Chemistry, 1981, vol. 18, p. 1651 - 1653
[5] Angewandte Chemie - International Edition, 2016, vol. 55, # 36, p. 10890 - 10894

(4-Fluoro-phenyl)-oxo-acetaldehyde Preparation Products And Raw materials

(4-Fluoro-phenyl)-oxo-acetaldehyde Suppliers

Global Suppliers ( 44)
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J & K SCIENTIFIC LTD. 18210857532 18210857532 jkinfo@jkchemical.com China 96815 76
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Amadis Chemical Company Limited 571-89925085 sales@amadischem.com China 131885 58
4-fluoro-alpha-oxo-benzeneacetaldehyd 4-fluoro-alpha-oxobenzeneacetaldehyde 4-FLUOROPHENYLGLYOXAL 4-Fluoro-α-oxo-benzeneacetaldehyde Benzeneacetaldehyde, 4-fluoro-.alpha.-oxo- (p-Fluorophenyl)glyoxal NSC 402742 Benzeneacetaldehyde, 4-fluoro-α-oxo- 4-Fluoro-α-oxo-benzeneacetaldehyde, CAS 403-32-7 (4-Fluoro-phenyl)-oxo-acetaldehyde 403-32-7 Miscellaneous Reagents Aromatics