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Chemical product profile

HONGKUN / PRODUCT DIRECTORY

4-Bromo-2,6-dimethylaniline | CAS 24596-19-8

A brominated xylidine combining an aniline nitrogen flanked by two methyl groups with a para aryl bromide, providing distinct sites for nitrogen derivatization and aromatic carbon–carbon bond formation.

CAS24596-19-8
Molecular formulaC8H10BrN
Molecular weight200.08 g/mol

Product overview

Two ortho methyl groups define the environment around the amino group of 4-bromo-2,6-dimethylaniline. The bromine occupies the para position, leaving a second synthetic handle on the same aromatic ring. This arrangement makes the compound relevant to routes that need a 2,6-dimethylaniline fragment with further substitution opposite the nitrogen. It is a neutral aromatic amine, also called 4-bromo-2,6-xylidine. For material qualification, the substitution pattern matters as much as total chromatographic purity: a different brominated xylidine can introduce a different aromatic fragment. Identity confirmation and a related-substances profile should therefore accompany any assay requirement, especially where the material enters a multistep medicinal chemistry route.

Chemical identity

Chemical name
4-Bromo-2,6-dimethylaniline
CAS number
24596-19-8
Molecular formula
C8H10BrN
Molecular weight
200.08 g/mol

Application context

Published medicinal chemistry patents use this compound to diversify the para position of the xylidine ring. In an O-GlcNAcase inhibitor research series, the aryl bromide participates in coupling with a methylpyrazole boronic acid, incorporating a heteroaromatic substituent while retaining the aniline group. Another reported route to non-nucleoside reverse transcriptase inhibitor candidates converts the brominated position to a nitrile. These examples illustrate two different uses of the carbon–bromine site; they concern synthetic intermediates for investigational compounds. The amino group and its two adjacent methyl groups remain defining features of the resulting building blocks. A sourcing request should identify which downstream conversion is intended so that the analytical review can distinguish positional isomers, residual unbrominated xylidine and other aromatic components relevant to that route.

Chemistry and synthetic role

The amino and bromo substituents provide different points of chemical modification. The two methyl groups occupy both positions next to the amino group; they are part of the required molecular architecture, rather than interchangeable ring substituents.

Quality review

Establish the 4-bromo substitution pattern

Use structure-confirming data capable of distinguishing brominated xylidine isomers; a single assay value does not establish substitution position.

Resolve related aromatic amines

Agree a chromatographic method and limits for relevant xylidine or brominated aromatic components based on the selected manufacturing route.

Match assay to reaction charging

Clarify whether the reported result is calibrated content or chromatographic area, and whether water or solvent is included in the reported basis.

Preparing a specification

Specify CAS 24596-19-8, the free aromatic amine, assay method and calculation basis, positional-isomer limits and any route-specific water or residual-solvent requirements. Include the intended para functionalization when requesting a qualification sample.

Packaging and storage

Confirm container format and net mass for the selected grade and destination. Use the supplied batch SDS to agree storage and handling conditions.

Documentation

Request a lot COA, structure-identification evidence and a chromatogram with the relevant aromatic impurities identified where available. Confirm availability of residual-solvent data if needed for the next synthesis stage.

Procurement questions

Is 4-bromo-2,6-xylidine the same material?

Yes. This name describes the same substitution pattern and should be paired with CAS 24596-19-8.

Which position is used for carbon–carbon coupling?

Published examples modify the carbon bearing bromine, para to the amino group. Reaction suitability still depends on the selected partner and process.

Does a high GC area establish identity?

No. Confirm the positional structure separately and review the method’s ability to resolve closely related aromatic compounds.

Technical sources
  1. PubChem CAS-resolved identity, CID 90549NCBI / National Library of Medicine
  2. 4-Bromo-2,6-dimethylaniline 192376Sigma-Aldrich
  3. WO2019243535A1 — OGA inhibitor compoundsPatent applicant / WIPO
  4. US7998969B2 — Non-nucleoside reverse transcriptase inhibitorsPatent applicant / USPTO