Description

2-Bromo-1-chloro-3-fluorobenzene (CAS No. 309721-44-6) is a high-purity halogenated benzene derivative with the molecular formula C₆H₃BrClF. This compound is a valuable intermediate in organic synthesis, particularly in pharmaceutical and agrochemical research. Its unique halogen substitution pattern (bromo, chloro, and fluoro groups at the 2-, 1-, and 3-positions, respectively) makes it a versatile building block for cross-coupling reactions, nucleophilic substitutions, and other functionalization processes. The product is supplied as a clear to pale-yellow liquid with ≥98% purity (GC), ensuring consistency for demanding applications. Proper storage under inert conditions is recommended to maintain stability. Available in various packaging options, from grams to kilograms, to suit laboratory and bulk-scale needs.

Properties

• CAS Number: 309721-44-6
• Complexity: 99.1
• IUPAC Name: 2-bromo-1-chloro-3-fluoro-benzene
• InChI: InChI=1S/C6H3BrClF/c7-6-4(8)2-1-3-5(6)9/h1-3H
• InChI Key: GBESIUPWXGQOFP-UHFFFAOYSA-N
• Exact Mass: 207.90907
• Molecular Formula: C6H3BrClF
• Molecular Weight: 209.44
• SMILES: C1=CC(=C(C(=C1)Cl)Br)F
• Monoisotopic Mass: 207.90907
• Synonyms: 2-Bromo-1-chloro-3-fluorobenzene, 309721-44-6, DTXSID80620402, DTXCID70571156, 859-830-4, 2-chloro-6-fluorobromobenzene, 2-Bromo-3-fluorochlorobenzene, Benzene, 2-bromo-1-chloro-3-fluoro-, 1-BROMO-2-CHLORO-6-FLUOROBENZENE, 2-Bromo-1-chloro-3-fluoro-benzene, MFCD09878161, SCHEMBL441763, 2-bromo-3-fluoro-chlorobenzene, SCHEMBL1494523, GBESIUPWXGQOFP-UHFFFAOYSA-N, AKOS015888491, CS-W004913, DS-12614, SY030402, EN300-136923

Application

2-Bromo-1-chloro-3-fluorobenzene is widely used as a key synthetic intermediate in the preparation of active pharmaceutical ingredients (APIs) and specialty chemicals. Its halogen-rich structure enables efficient Suzuki-Miyaura and Buchwald-Hartwig coupling reactions for constructing complex aromatic systems. Researchers also employ it in the development of liquid crystals, OLED materials, and agrochemicals due to its electron-withdrawing properties. The compound’s reactivity is particularly valuable in medicinal chemistry for introducing halogenated aryl motifs into drug candidates.

Safety and Hazards

GHS Hazard Statements

• H302 (50%): Harmful if swallowed [Warning Acute toxicity, oral]
• H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
• H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
• 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, P319, P321, P330, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501

Hazard Classes and Categories

• Acute Tox. 4 (50%)
• Skin Irrit. 2 (100%)
• Eye Irrit. 2A (100%)
• 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.