Description

4,5-Difluoro-2-methylaniline (CAS No. 875664-57-6) is a high-purity fluorinated aromatic amine with the molecular formula C₇H₇F₂N. This compound is a valuable intermediate in organic synthesis, particularly in the development of pharmaceuticals, agrochemicals, and advanced materials. Its unique structure, featuring two fluorine atoms and a methyl group on the aniline ring, enables precise reactivity for selective functionalization. Available in >98% purity (HPLC), it is supplied as a crystalline solid with strict quality control to ensure consistency for research and industrial applications. Ideal for Suzuki couplings, nucleophilic substitutions, and other cross-coupling reactions. Store under inert conditions at 2-8°C to maintain stability.

Properties

• CAS Number: 875664-57-6
• Complexity: 118
• IUPAC Name: 4,5-difluoro-2-methyl-aniline
• InChI: InChI=1S/C7H7F2N/c1-4-2-5(8)6(9)3-7(4)10/h2-3H,10H2,1H3
• InChI Key: HKAMTWLPOCYTMX-UHFFFAOYSA-N
• Exact Mass: 143.05465555
• Molecular Formula: C7H7F2N
• Molecular Weight: 143.13
• SMILES: CC1=CC(=C(C=C1N)F)F
• Topological: 26
• Monoisotopic Mass: 143.05465555
• Synonyms: 4,5-Difluoro-2-methylaniline, 875664-57-6, DTXSID50595850, DTXCID80546613, MFCD08062378, 4,5-DIFLUORO-O-TOLUIDINE, 4,5-difluoro-2-methylbenzenamine, 2-AMINO-4,5-DIFLUORO-TOLUENE, SCHEMBL966908, 4,5-Difluoro-2-methylaniline?, SCHEMBL26697137, HKAMTWLPOCYTMX-UHFFFAOYSA-N, (4,5-difluoro-2-methylphenyl)amine, AKOS005257850, CS-W018263, FD67856, AS-10233, SY238885, BENZENAMINE,4,5-DIFLUORO-2-METHYL-, EN300-1295879

Application

4,5-Difluoro-2-methylaniline serves as a key building block in medicinal chemistry for synthesizing fluorinated drug candidates, leveraging its electron-withdrawing fluorine atoms to enhance metabolic stability. It is also used in agrochemical research to develop novel herbicides and pesticides with improved efficacy. Additionally, its reactivity makes it suitable for creating specialized dyes and polymers with tailored optical or electronic properties.

Safety and Hazards

GHS Hazard Statements

• H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]
• H312 (83.3%): Harmful in contact with skin [Warning Acute toxicity, dermal]
• H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
• H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
• H332 (83.3%): Harmful if inhaled [Warning Acute toxicity, inhalation]
• H335 (100%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statements

• P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P304+P340, P305+P351+P338, P317, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501

Hazard Classes and Categories

• Acute Tox. 4 (100%)
• Acute Tox. 4 (83.3%)
• Skin Irrit. 2 (100%)
• Eye Irrit. 2 (100%)
• Acute Tox. 4 (83.3%)
• STOT SE 3 (100%)

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Disclaimer: Sold exclusively for laboratory research. Prohibited for commercial use, diagnostics, or human/animal applications. Buyers assume all compliance liability.