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Atomfair 1,4-Difluorobenzene p-DFB C6H4F2 CAS 540-36-3

1,4-Difluorobenzene (CAS 540-36-3) is a high-purity aromatic compound with the molecular formula C6H4F2. This colorless liquid is widely utilized in organic synthesis, pharmaceutical intermediates, and material science due to its unique fluorinated aromatic structure. With a purity of ≥99%, our product is rigorously tested via GC-MS and NMR to ensure consistency and reliability for research and industrial applications. It is packaged under inert gas to maintain stability and is available in various quantities, from grams to bulk orders. Ideal for nucleophilic substitution reactions, cross-coupling chemistry, and as a precursor in agrochemical and pharmaceutical manufacturing.

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Description

1,4-Difluorobenzene (CAS 540-36-3) is a high-purity aromatic compound with the molecular formula C6H4F2. This colorless liquid is widely utilized in organic synthesis, pharmaceutical intermediates, and material science due to its unique fluorinated aromatic structure. With a purity of ≥99%, our product is rigorously tested via GC-MS and NMR to ensure consistency and reliability for research and industrial applications. It is packaged under inert gas to maintain stability and is available in various quantities, from grams to bulk orders. Ideal for nucleophilic substitution reactions, cross-coupling chemistry, and as a precursor in agrochemical and pharmaceutical manufacturing.

Properties

  • CAS Number: 540-36-3
  • Complexity: 54.9
  • IUPAC Name: 1,4-difluorobenzene
  • InChI: InChI=1S/C6H4F2/c7-5-1-2-6(8)4-3-5/h1-4H
  • InChI Key: QUGUFLJIAFISSW-UHFFFAOYSA-N
  • Exact Mass: 114.02810645
  • Molecular Formula: C6H4F2
  • Molecular Weight: 114.09
  • SMILES: C1=CC(=CC=C1F)F
  • Monoisotopic Mass: 114.02810645
  • Physical Description: Liquid with a pungent aromatic odor; Colorless liquid;
  • Synonyms: 1,4-DIFLUOROBENZENE, p-Difluorobenzene, 2,5-difluorobenzene, 1,4-Difluorbenzol, UNII-Y9FQ2EF0Z6, EINECS 208-742-9, Y9FQ2EF0Z6, NSC 10286, CHEBI:38585, NSC-10286, P-DIFLUOROBENZENE [MI], DTXSID1075432, QUGUFLJIAFISSW-UHFFFAOYSA-, pDifluorobenzene, paraDifluorobenzene, Benzene, pdifluoro, Benzene, 1,4difluoro, Benzene, 1,4difluoro (9CI), DTXCID0041563, inchi=1/c6h4f2/c7-5-1-2-6(8)4-3-5/h1-4h, qugufljiafissw-uhfffaoysa-n, 540-36-3, Benzene, 1,4-difluoro-, para-Difluorobenzene, Benzene, p-difluoro-, MFCD00000344, 1,4-Difluoro-benzene, Benzene,4-difluoro-, WLN: FR DF, 1,4-bis(fluoranyl)benzene, SCHEMBL3518, SCHEMBL13499, SCHEMBL168680, CHEMBL496192, SCHEMBL8695449, SCHEMBL15755014, 1,4-Difluorobenzene, >=99%, NSC10286, AKOS000120883, DS-3203, 1,4-Difluorobenzene, analytical standard, DB-020072, DB-052463, D1628, NS00043113, EN300-20356, 1,4-Difluorobenzene 2000 microg/mL in Methanol, A829919, Q27117911, F0001-1411

1,4-Difluorobenzene serves as a key intermediate in the synthesis of advanced fluorinated compounds, including liquid crystals and specialty polymers. It is commonly employed in palladium-catalyzed coupling reactions for pharmaceutical drug development. Additionally, its electron-withdrawing properties make it valuable in materials science for designing high-performance organic semiconductors and coatings. Researchers also utilize it as a solvent or reagent in fine chemical synthesis.

Safety and Hazards

GHS Hazard Statements

  • H224 (69.8%): Extremely flammable liquid and vapor [Danger Flammable liquids]
  • H225 (26.4%): Highly Flammable liquid and vapor [Danger Flammable liquids]
  • H319 (13.2%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]

Precautionary Statements

  • P210, P233, P240, P241, P242, P243, P264+P265, P280, P303+P361+P353, P305+P351+P338, P337+P317, P370+P378, P403+P235, and P501

Hazard Classes and Categories

  • Flam. Liq. 1 (69.8%)
  • Flam. Liq. 2 (26.4%)
  • Eye Irrit. 2A (13.2%)

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

Disclaimer

Intended Use & Restrictions

This product is sold exclusively for laboratory research, analytical testing, or non-commercial purposes.

  • Strictly prohibited: Resale, repackaging, or formulation into commercial products.
  • Not approved for human/animal use, diagnostics, or manufacturing (including pharmaceuticals, agrochemicals, or consumer goods).

Patent & Regulatory Compliance

Certain molecules may be protected by active patents or regulatory restrictions.

  • Buyers must independently verify patent status (e.g., via USPTO/EPO/CNIPA) and comply with local laws.
  • Atomfair LLC does not provide legal assurances regarding patent non-infringement or jurisdictional compliance.

Liability Release

By purchasing, the buyer agrees to:

  • Use this product only as permitted by law.
  • Indemnify Atomfair LLC against all claims arising from misuse, patent infringement, or regulatory violations.

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