(4-Bromobutyl)triphenylphosphonium bromide

Also known as: (4-Bromobutyl)triphenylphosphonium bromide, (4-BROMOBUTYL)TRIPHENYLPHOSPHONIUM BROMIDE, 4-Bromobutyl triphenylphosphonium bromide,97%, (4-Bromobutyl)triphenylphosphonium bromide 98%, (4-bromobutyl)triphenylphosphanium bromide, NSC 84071, Phosphonium, (4-bromobutyl)triphenyl-, bromide (1:1), MFCD00031636

(4-Bromobutyl)triphenylphosphonium bromide (CAS 7333-63-3) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C22H23Br2P and a molecular weight of 478.200 g/mol. Key property: a melting point of 210-213 °C(lit.). It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. It is listed by 1 supplier; request a quote for pricing. Record last updated Aug 21, 2026.

CAS No.: 7333-63-3
Jingsj CID: J-2527-4
Molecular Formula: C₂₂H₂₃Br₂P
Molecular Weight: 478.200 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	210-213 °C(lit.)
Exact Mass	475.990387
PSA	13.59000
LogP	2.15960

GHS Safety & Compliance

IrritantSignal word: Warning

H315 — Causes skin irritation
H319 — Causes serious eye irritation
H335 — May cause respiratory irritation

Frequently Asked Questions

What is the CAS number of (4-Bromobutyl)triphenylphosphonium bromide?

The CAS number of (4-Bromobutyl)triphenylphosphonium bromide is 7333-63-3.

What are the molecular formula and molecular weight of (4-Bromobutyl)triphenylphosphonium bromide?

(4-Bromobutyl)triphenylphosphonium bromide has molecular formula C22H23Br2P and molecular weight 478.200 g/mol.

Which suppliers offer (4-Bromobutyl)triphenylphosphonium bromide?

1 supplier(s) listed; request a quote for pricing.

Is (4-Bromobutyl)triphenylphosphonium bromide hazardous?

(4-Bromobutyl)triphenylphosphonium bromide has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated: 8/21/2026

How to cite: Jingsj. "(4-Bromobutyl)triphenylphosphonium bromide (CAS 7333-63-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-2527-4 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.