Description

1-Chloro-2,5-difluorobenzene (CAS: 2367-91-1) is a high-purity halogenated aromatic compound with the molecular formula C₆H₃ClF₂, widely utilized in pharmaceutical, agrochemical, and material science research. This compound, also known as 2-chloro-1,4-difluorobenzene by IUPAC nomenclature, features a benzene ring substituted with chlorine and fluorine atoms at the 1, 2, and 5 positions, offering unique reactivity for electrophilic substitution and cross-coupling reactions. Its stability and distinct electronic properties make it a valuable intermediate in synthesizing advanced organic molecules, including liquid crystals, polymers, and active pharmaceutical ingredients (APIs). Packaged under inert conditions to ensure longevity, our product undergoes rigorous QC testing (GC, NMR) to guarantee ≥98% purity, meeting the stringent demands of industrial and academic laboratories.

Properties

• CAS Number: 2367-91-1
• Complexity: 97.1
• IUPAC Name: 2-chloro-1,4-difluoro-benzene
• InChI: InChI=1S/C6H3ClF2/c7-5-3-4(8)1-2-6(5)9/h1-3H
• InChI Key: XWCKSJOUZQHFKI-UHFFFAOYSA-N
• Exact Mass: 147.9891341
• Molecular Formula: C6H3ClF2
• Molecular Weight: 148.54
• SMILES: C1=CC(=C(C=C1F)Cl)F
• Monoisotopic Mass: 147.9891341
• Synonyms: 1-Chloro-2,5-difluorobenzene, 2367-91-1, Benzene,2-chloro-1,4-difluoro-, DTXSID70178341, NSC 10253, DTXCID00100832, 624-315-3, xwcksjouzqhfki-uhfffaoysa-n, 2-chloro-1,4-difluorobenzene, Benzene, 2-chloro-1,4-difluoro-, 2,5-difluorochlorobenzene, NSC10253, MFCD00042571, SCHEMBL167260, SCHEMBL193136, SCHEMBL260501, SCHEMBL975333, SCHEMBL6206442, 2-chloro-4-fluoro-fluorobenzene, NSC-10253, SBB086603, AKOS006229600, AS-30437, DB-020823, DB-046220, CS-0020119, EN300-108427, 1-Chloro-2,5-difluorobenzene, 2-Chloro-1,4-difluorobenzene

Application

1-Chloro-2,5-difluorobenzene serves as a versatile building block in organofluorine chemistry, enabling the synthesis of fluorinated aromatic derivatives for drug discovery and agrochemical development. Its electron-deficient ring system facilitates Suzuki-Miyaura and Ullmann coupling reactions, critical for constructing biaryl scaffolds. Researchers also employ it in liquid crystal material design due to its polarizable halogen substituents, which modulate mesophase behavior.

Safety and Hazards

GHS Hazard Statements

• H225 (100%): Highly Flammable liquid and vapor [Danger Flammable liquids]
• H302 (86.7%): Harmful if swallowed [Warning Acute toxicity, oral]
• H312 (86.7%): Harmful in contact with skin [Warning Acute toxicity, dermal]
• H315 (11.1%): Causes skin irritation [Warning Skin corrosion/irritation]
• H319 (97.8%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
• H332 (86.7%): Harmful if inhaled [Warning Acute toxicity, inhalation]
• H335 (97.8%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statements

• P210, P233, P240, P241, P242, P243, P261, P264, P264+P265, P270, P271, P280, P301+P317, P302+P352, P303+P361+P353, P304+P340, P305+P351+P338, P317, P319, P321, P330, P332+P317, P337+P317, P362+P364, P370+P378, P403+P233, P403+P235, P405, and P501

Hazard Classes and Categories

• Flam. Liq. 2 (100%)
• Acute Tox. 4 (86.7%)
• Acute Tox. 4 (86.7%)
• Skin Irrit. 2 (11.1%)
• Eye Irrit. 2 (97.8%)
• Acute Tox. 4 (86.7%)
• STOT SE 3 (97.8%)

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