2,3,5,6-Tetrafluoroaniline TCI T1028

Chemical Identity

CAS No.: 700-17-4
PubChem: CID 12786·SID 87576832
Formula: C6H3F4N
Molecular weight: 165.09 g/mol
Purity: >97.0%(GC)
Reference databases: ECHA

Full identifiers (IUPAC, SMILES, InChIKey)

IUPAC: 2,3,5,6-tetrafluoroaniline
SMILES: C1=C(C(=C(C(=C1F)F)N)F)F
InChIKey: SPSWJTZNOXMMMV-UHFFFAOYSA-N

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2,3,5,6-Tetrafluoroaniline from TCI, catalog code T1028, is a fluorinated aniline carrying four fluorine atoms on the benzene ring. Only the position para to the amino group still bears a hydrogen atom. The compound belongs to the class of fluorinated building blocks, which laboratories use to construct fluorine-rich aromatic molecules. In the laboratory it serves as a starting material for the synthesis of pharmaceuticals, agrochemicals, dyes, and functional materials.

The compound is chosen for its distinctive substitution pattern. The amino group can be acylated, alkylated, or converted through a diazonium salt into a variety of other groups. The single C–H position on the ring provides a well-defined point for further functionalization. The four fluorine atoms lower the basicity of the amine and change the electronic character of the ring. Fluorine also tends to improve the metabolic stability and lipophilicity of derived compounds, which are properties sought after in the design of bioactive molecules.

Medicinal chemistry, materials chemistry, and organic synthesis laboratories in Indonesia can use 2,3,5,6-Tetrafluoroaniline to prepare fluorinated amides, imines, and heterocycles. It is also useful for studies of how fluorine substitution affects molecular properties, making it a practical reagent for both research and teaching laboratories working with fluorinated aromatic compounds.

TCI brochures (PDF)

Fluorination Reagents, Fluorinated Building Blocks 2026-03-18 · p. 34

Related TCI products

Pharmaceutical intermediate synthesis: the reactive amino group and the fluorinated ring let chemists build fluorine-containing scaffolds that are commonly explored in drug discovery programs.
Agrochemical research: fluorinated aromatic amines are useful starting points for new active structures, and this compound offers a defined substitution pattern that supports systematic structure-activity studies.
Dye and functional material development: the electron-poor tetrafluorinated ring changes the electronic behavior of derived compounds, which makes this aniline suitable for preparing specialty dyes and functional materials.
Preparation of fluorinated amides, imines, and heterocycles: the amino group reacts readily in acylation, condensation, and cyclization steps, so this building block suits the construction of a wide range of fluorinated products.
Studies of fluorine effects on molecular properties: with four fluorine atoms and one remaining C–H site, the compound provides a clear model for examining how fluorine changes basicity, lipophilicity, and reactivity.

Brand	TCI
CAS number	700-17-4
Molecular formula	—
Purity	—
Category	Chemistry > Building Blocks > Fluorinated Building Blocks
Pack sizes	please refer to the product listing for available sizes
Physical form	—
Storage	keep tightly closed in a cool, dry, well-ventilated place; consult the supplier's safety data sheet for exact conditions

Catalog code: T1028

Store 2,3,5,6-Tetrafluoroaniline in its original, tightly closed container in a cool, dry, and well-ventilated area, away from direct sunlight, heat sources, and incompatible materials such as strong oxidizing agents. Glass or other chemically resistant containers with secure closures are generally suitable. Handle the material inside a fume hood and wear appropriate personal protective equipment, including safety goggles, chemical-resistant gloves, and a laboratory coat. Avoid inhaling dust or vapors and avoid contact with skin and eyes. Label all secondary containers clearly, and dispose of waste according to institutional and local regulations. Always consult the safety data sheet before use for the exact hazard information and storage requirements.

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