Description

Potassium (4-Fluorophenyl)trifluoroborate (CAS No. 192863-35-7) is a high-purity organoboron compound with the molecular formula C₆H₄BF₄K. This white to off-white crystalline powder is widely utilized in Suzuki-Miyaura cross-coupling reactions as a stable and efficient boronic acid surrogate. With a molecular weight of 194.00 g/mol, it offers excellent solubility in polar organic solvents such as DMF, DMSO, and methanol while remaining stable to air and moisture. Our product is rigorously tested to meet >98% purity standards (HPLC) and is packaged under inert atmosphere to ensure long-term stability. Ideal for pharmaceutical intermediates, material science research, and catalyst development, this reagent is supplied with comprehensive analytical data including ¹H NMR, ¹³C NMR, and FT-IR spectra. Available in research (5g, 25g) and bulk quantities (100g, 500g, 1kg), each batch is accompanied by a Certificate of Analysis detailing purity, heavy metal content, and residual solvent levels.

Properties

• CAS Number: 192863-35-7
• Complexity: 130
• IUPAC Name: potassium;trifluoro-(4-fluorophenyl)boranuide
• InChI: InChI=1S/C6H4BF4.K/c8-6-3-1-5(2-4-6)7(9,10)11;/h1-4H;/q-1;+1
• InChI Key: PXKNUQDMYBUYSZ-UHFFFAOYSA-N
• Exact Mass: 201.9979244
• Molecular Formula: C6H4BF4K
• Molecular Weight: 202.00
• SMILES: [B-](C1=CC=C(C=C1)F)(F)(F)F.[K+]
• Monoisotopic Mass: 201.9979244
• Synonyms: Potassium (4-fluorophenyl)trifluoroborate, 681-607-3, 192863-35-7, Potassium 4-fluorophenyltrifluoroborate, Potassium trifluoro(4-fluorophenyl)borate, MFCD01318170, Borate(1-), trifluoro(4-fluorophenyl)-, potassium (1:1), (T-4)-, potassium;trifluoro-(4-fluorophenyl)boranuide, POTASSIUM TRIFLUORO(4-FLUOROPHENYL)BORANUIDE, Potassium-4-fluorophenyltrifluoroborate, 4-FLUOROPHENYLTRIFLUOROBORIC ACID POTASSIUM SALT, SCHEMBL1560330, DTXSID30635526, SBB092841, AKOS005254995, AB08666, AS-2582, Potassiumtrifluoro(4-fluorophenyl)borate, SY062257, DB-044814, CS-0137898, P1465, potassium,trifluoro-(4-fluorophenyl)boranuide, Potassium trifluoro(4-fluorophenyl)borate(1-), N11985, EN300-1253181

This reagent serves as a key building block in pharmaceutical synthesis, particularly for creating fluorinated biphenyl derivatives via palladium-catalyzed cross-coupling reactions. Its enhanced stability compared to boronic acids makes it valuable for multi-step synthetic sequences. Researchers employ it in material science for developing fluorinated organic semiconductors and liquid crystal compounds. The compound also finds use in PET radiotracer development due to the ¹⁹F moiety’s NMR activity.

Safety and Hazards

GHS Hazard Statements

• H315 (97.8%): Causes skin irritation [Warning Skin corrosion/irritation]
• H319 (97.8%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
• H335 (95.6%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statements

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

Hazard Classes and Categories

• Skin Irrit. 2 (97.8%)
• Eye Irrit. 2 (97.8%)
• STOT SE 3 (95.6%)

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