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Specifications Synonym(s): 2-Thienylboric acid; 2-Thienylboronic acid; Thien-5-ylboronic acid; Thiophene-2-boronic acidFormula: C4H5BO2SFormula Weight: 127.96CAS No.: 6165-68-0Purity: ≥95.0%Application: Reagent used for• Palladium-catalyzed Suzuki-Miyaura cross-couplings • Alkylation, boration, coupling reaction, Suzuki coupling, and halogenation of fluorenyl bromide • Chain-growth catalyst transfer polycondensation of conjugated alternating copolymer • Ferric perchlorate-promoted reaction of fullerene to give fullerenyl boronic esters • Ligand-free Suzuki, Sonogashira, and Heck cross-coupling reactions • Copper-catalyzed nitration reactions • Geometry relaxation-induced Large Stokes shift in red-emitting borondipyrromethenes (BODIPY) and applications in fluorescent thiol probes Reagent used in Preparation of• Photophysical properties of oxygen-containing polycyclic aromatic triptycenes • Donor unit for donor-acceptor-type polymers via N-alkylation, Suzuki coupling, and bromination • Aminopyridine-based inhibitors of mitotic kinase Nek2 with potential antipoliferative effects in cancer tumorsOther Notes: Contains varying amounts of anhydrideStorage: 2-8°CPackaging: 1, 5 g in glass bottleBeilstein Registry Number: 112375Melting Point: 138-140°C(lit.)Empirical Formula (Hill Notation): C6H5N3O5
