4-Bromo-2,6-difluoroaniline

CAS No.

67567-26-4

Synonyms

4-Bromo-2,6-difluorobenzenamine

Molecular formula

C6H4BrF2N

Molecular weight

208.01 g/mol

Grade

Industrial grade

Packaging

Sealed PE bag / Fiber drum with PE liner

Chemical Product Description & Applications

4-Bromo-2,6-difluoroaniline is a halogenated aromatic amine with separate nitrogen and aryl-bromide reaction sites. The amino group supports acylation and heterocycle formation, while the bromine permits coupling reactions that extend the aromatic framework. The two fluorine substituents provide a defined substitution pattern that can be retained in downstream products.

This combination makes the compound relevant to both pharmaceutical-intermediate and functional-molecule synthesis. Amino-group conversion can build nitrogen-containing rings, whereas carbon coupling at the brominated position can generate diaryl, terphenyl or arylethynyl structures. The material therefore supplies more than an aromatic amine alone: it allows different reaction sequences to address the amino group and the para carbon connection point independently.

Typical Applications

  • Fluorinated benzimidazole intermediates: Used as the halogenated aniline fragment in amidine formation and subsequent cyclization routes, including preparation of abemaciclib-related benzimidazole structures.
  • Fluorogenic analytical reagent synthesis: Used in preparation of bromofluorobenzoxadiazole-derived reagents reported for chromatographic determination of aminothiols, supplying the fluorinated aromatic starting framework.
  • Arylalkyne and terphenyl construction: Used in coupling chemistry to prepare fluorinated arylethynyl and extended aromatic amines, including substituted tolane and terphenyl derivatives.

Specifications

Parameter Specification Test Method
Appearance Solid; color consistent with the reference sample Visual inspection
Identification Consistent with authenticated reference FTIR fingerprint comparison
Chromatographic purity ≥98.0 area% HPLC with suitable UV or CAD detection
Total organic impurities ≤2.0 area% HPLC, area normalization
Largest individual impurity ≤1.0 area% HPLC, area normalization
Water ≤1.0% w/w Karl Fischer titration

Specifications describe the standard grade. Tolerance, test method and documentation package are confirmed per order.

Documents & Handling

Packaging

Sealed PE bag / Fiber drum with PE liner

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SDS

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