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Home/Compounds/Research Reagent/Tetraphenylphosphonium bromide
C24H20BrP
419.3 g/mol
Research ReagentWarning

Tetraphenylphosphonium bromide

CAS2751-90-8EC220-393-4
Category
Research Reagent
Compound Class
Other
Primary Use
Research Compound

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.

phase transfer catalyst in organic reactionslaboratory reagent for synthesis

Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.

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Related Compounds

StrongSame Parent

Tetraphenylphosphonium phenolate

CAS15464-47-8

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ApplicationSame Use

(4-Carboxybutyl)triphenylphosphonium bromide

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ReferenceSame Category

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CAS2751703-70-3

research compound

ReferenceSame Category

DBCO-(PEG)3-VC-PAB-MMAE

CAS2754384-60-4

research compound

ReferenceSame Category

Nitroso vareniclin

CAS2755871-02-2

research compound

ReferenceSame Category

5-(2,4-Difluorophenyl)-4-methoxy-1H-pyrrole-3-carbaldehyde

CAS2756367-38-9

research compound

Safety Reference

Harmful
Harmful
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation

Customs Tariff Classification

The international HS code for Tetraphenylphosphonium bromide (CAS 2751-90-8) is 2931.49.

HS code (international, 6-digit)

2931.49

EU CN code (8-digit)

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.

Identifiers
IUPAC Name

tetraphenylphosphanium bromide

InChIKey

BRKFQVAOMSWFDU-UHFFFAOYSA-M

SMILES

C1=CC=C(C=C1)[P+](C2=CC=CC=C2)(C3=CC=CC=C3)C4=CC=CC=C4.[Br-]

Synonyms (8)
  • T-1069
  • TPP-PB
  • Bromotetraphenylphosphorane
  • Tetraphenylphosphorus bromide

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