Safety Reference
Warning
H302Harmful if swallowed
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Sourcing (4-Carboxybutyl)triphenylphosphonium bromide?
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Tetraphenylphosphonium bromide
research compound
Sourcing (4-Carboxybutyl)triphenylphosphonium bromide?
Post a free purchase request — no account needed. It reaches suppliers of this product, and replies go straight to your inbox.
(4-Carboxybutyl)triphenylphosphonium bromide is an organic salt used as a phase transfer catalyst in research and chemical synthesis. It consists of a phosphonium cation with a carboxylic acid side chain and a bromide counterion.
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.
The international HS code for (4-Carboxybutyl)triphenylphosphonium bromide (CAS 17814-85-6) 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.
4-carboxybutyl(triphenyl)phosphanium bromide
MLOSJPZSZWUDSK-UHFFFAOYSA-N
C1=CC=C(C=C1)[P+](CCCCC(=O)O)(C2=CC=CC=C2)C3=CC=CC=C3.[Br-]