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Chemical product profile

HONGKUN / PRODUCT DIRECTORY

4-Fluorobenzophenone | CAS 345-83-5

A diaryl ketone with a para fluorine reaction handle, used in aromatic substitution studies where the carbonyl group and substitution pattern determine the targeted transformation.

CAS345-83-5
Molecular formulaC13H9FO
Molecular weight200.21 g/mol

Product overview

The benzophenone carbonyl lies para to fluorine on one aromatic ring. This arrangement makes the compound useful for studying nucleophilic aromatic substitution while retaining a ketone functionality. It carries only one aryl fluorine, so it should not be confused with difluorobenzophenone monomers. Qualification focuses on the para isomer and structurally similar diaryl ketones.

Chemical identity

Chemical name
4-Fluorobenzophenone
CAS number
345-83-5
Molecular formula
C13H9FO
Molecular weight
200.21 g/mol

Application context

Published reaction studies examine fluorobenzophenone with phenolate nucleophiles to form aromatic ether products. These studies relate substituent structure to reaction behaviour in chemistry relevant to aromatic polymer construction. For procurement, identify whether the project targets substitution of fluorine or transformation of the ketone. The required impurity profile should then distinguish positional isomers, benzophenone and other related ketones appropriate to that route.

Chemistry and synthetic role

The carbonyl withdraws electron density from the fluorinated ring; the para C–F position and the ketone are distinct synthetic handles.

Quality review

Verify para fluorine

Use structural identification capable of distinguishing fluorobenzophenone isomers.

Review related diaryl ketones

Agree chromatographic control of benzophenone and relevant fluorinated analogues.

Define moisture for the conversion

Set water requirements for the selected phenolate or carbonyl chemistry.

Preparing a specification

State the para-monofluoro identity, assay, related diaryl ketones, water and whether the intended route targets C–F substitution or the carbonyl.

Packaging and storage

Confirm container compatibility, closure and net weight for the selected grade and destination. Follow the actual supplier SDS and batch label for storage and transport.

Documentation

Request the batch COA, SDS and analytical methods covering the agreed purchasing specification. Confirm which supporting chromatograms and application-specific records are available from the selected manufacturer.

Procurement questions

Is it a difunctional fluorinated monomer?

It has one aryl fluorine; difluorobenzophenone is a different material.

Which group undergoes the cited substitution?

The aryl fluorine is replaced in the phenolate substitution studies.

Why specify the planned reaction?

Aryl substitution and ketone transformations may need different impurity controls.

Technical sources
  1. PubChem CAS identity lookupNCBI / PubChem
  2. 4-FluorobenzophenoneFisher Scientific
  3. Polymerisation and related reactions involving nucleophilic aromatic substitution, Part 2Royal Society of Chemistry