Tetraphenylphosphonium bromide is a quaternary phosphonium salt that functions as a phase transfer catalyst. It is commonly employed in organic synthesis to facilitate the transfer of reactants between immiscible phases.
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Tetraphenylphosphonium phenolate
pharmaceutical intermediate
(4-Carboxybutyl)triphenylphosphonium bromide
research compound
Propan-2-yl oxirane-2-carboxylate
research compound
DBCO-(PEG)3-VC-PAB-MMAE
research compound
Nitroso vareniclin
research compound
5-(2,4-Difluorophenyl)-4-methoxy-1H-pyrrole-3-carbaldehyde
research compound
The international HS code for Tetraphenylphosphonium bromide (CAS 2751-90-8) is 2931.49.
2931.49
2931 49 80
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
tetraphenylphosphanium bromide
BRKFQVAOMSWFDU-UHFFFAOYSA-M
C1=CC=C(C=C1)[P+](C2=CC=CC=C2)(C3=CC=CC=C3)C4=CC=CC=C4.[Br-]
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