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455-32-3 Usage

Chemical Properties

clear yellow to red-brown liquid


Different sources of media describe the Uses of 455-32-3 differently. You can refer to the following data:
1. Manufacturing of acyl and other fluorides.
2. Benzoyl fluoride is used as a mild fluorinating agent.

Synthesis Reference(s)

Journal of the American Chemical Society, 96, p. 925, 1974 DOI: 10.1021/ja00810a052The Journal of Organic Chemistry, 49, p. 3216, 1984 DOI: 10.1021/jo00191a035


High toxicity.

Check Digit Verification of cas no

The CAS Registry Mumber 455-32-3 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 4,5 and 5 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 455-32:
63 % 10 = 3
So 455-32-3 is a valid CAS Registry Number.

455-32-3 Well-known Company Product Price

  • Brand
  • (Code)Product description
  • CAS number
  • Packaging
  • Price
  • Detail
  • Alfa Aesar

  • (L11464)  Benzoyl fluoride, 97%   

  • 455-32-3

  • 5g

  • 231.0CNY

  • Detail
  • Alfa Aesar

  • (L11464)  Benzoyl fluoride, 97%   

  • 455-32-3

  • 25g

  • 779.0CNY

  • Detail



According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 20, 2017

Revision Date: Aug 20, 2017


1.1 GHS Product identifier

Product name Benzoyl Fluoride

1.2 Other means of identification

Product number -
Other names Benzoyl fluoride

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:455-32-3 SDS

455-32-3Relevant articles and documents



, (1940)


Proton Sponge Hydrofluoride as a Soluble Fluoride Ion Source

Chambers, Richard D.,Holmes, Thomas F.,Korn, Stewart R.,Standford, Graham

, p. 855 - 856 (1993)

Proton Sponge (PS) hydrofluoride has been prepared and is totally soluble in acetonitrile; this system was used to generate carbanions from hexafluoropropene and to form carbon-fluorine bonds by reaction with 2,4,6-trichloropyrimidine and by reaction with benzoyl chloride (Proton Sponge hydrochloride is insoluble in acetonitrile).

Olah et al.

, p. 6717 (1976)

Acyl fluorides from carboxylic acids, aldehydes, or alcohols under oxidative fluorination

Liang, Yumeng,Zhao, Zhengyu,Taya, Akihito,Shibata, Norio

supporting information, p. 847 - 852 (2021/02/06)

We describe a novel reagent system to obtain acyl fluorides directly from three different functional group precursors: carboxylic acids, aldehydes, or alcohols. The transformation is achieved via a combination of trichloroisocyanuric acid and cesium fluoride, which facilitates the synthesis of various acyl fluorides in high yield (up to 99%). It can be applied to the late-stage functionalization of natural products and drug molecules that contain a carboxylic acid, an aldehyde, or an alcohol group.

Deoxyfluorination of Carboxylic Acids with CpFluor: Access to Acyl Fluorides and Amides

Wang, Xiu,Wang, Fei,Huang, Fengfeng,Ni, Chuanfa,Hu, Jinbo

supporting information, p. 1764 - 1768 (2021/03/03)

3,3-Difluoro-1,2-diphenylcyclopropene (CpFluor), a bench-stable fluorination reagent, has been developed in the deoxyfluorination of carboxylic acids to afford various acyl fluorides. This all-carbon-based fluorination reagent enabled the efficient transformation of (hetero)aryl, alkyl, alkenyl, and alkynyl carboxylic acids to the corresponding acyl fluorides under the neutral conditions. This deoxyfluorination method was featured by the synthesis of acyl fluorides with in-situ formed CpFluor, as well as the one-pot amidation reaction of carboxylic acids via in-situ formed acyl fluorides.

Direct amidation of acid fluorides using germanium amides

Hayatifar, Ardalan,Elifritz, Emily A.,Bloom, Molly B.,Pixley, Kaitlyn M.,Fennell, Christopher J.,Weinert, Charles S.

supporting information, p. 4490 - 4493 (2021/04/12)

Amide functional groups are an essential linkage that are found in peptides, proteins, and pharmaceuticals and new methods are constantly being sought for their formation. Here, a new method for their preparation is presented where germanium amides Ph3GeNR2convert acid fluorides directly to amides. These germanium amides serve to abstract the fluorine atom of the acid fluoride and transfer their amide group -NR2to the carbonyl carbon, and so function as amidation reagents.

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