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Triphenyl-(4-sulfo-butyl)-phosphonium inner salt

Also known as: 4-(Triphenylphosphonio)butane-1-sulfonate, 4-triphenylphosphaniumylbutane-1-sulfonate, Triphenyl-(4-sulfo-butyl)-phosphonium inner salt

Triphenyl-(4-sulfo-butyl)-phosphonium inner salt (CAS 164982-05-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C22H23O3PS and a molecular weight of 398.45500 g/mol. 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. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
164982-05-2
Jingsj CID
J-1188970-6
Molecular Formula
C22H23O3PS
Molecular Weight
398.45500 g/mol
Category
Organic Acids
Last updated
8/21/2026
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Physicochemical Properties

Exact Mass398.11100
PSA96.89000
LogP3.95120

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 Triphenyl-(4-sulfo-butyl)-phosphonium inner salt?

The CAS number of Triphenyl-(4-sulfo-butyl)-phosphonium inner salt is 164982-05-2.

What are the molecular formula and molecular weight of Triphenyl-(4-sulfo-butyl)-phosphonium inner salt?

Triphenyl-(4-sulfo-butyl)-phosphonium inner salt has molecular formula C22H23O3PS and molecular weight 398.45500 g/mol.

Is Triphenyl-(4-sulfo-butyl)-phosphonium inner salt hazardous?

Triphenyl-(4-sulfo-butyl)-phosphonium inner salt has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of Triphenyl-(4-sulfo-butyl)-phosphonium inner salt?

For Triphenyl-(4-sulfo-butyl)-phosphonium inner salt, Upstream Products: 1,4-Butane sultone, Triphenylphosphine.

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

Last updated:

How to cite: Jingsj. "Triphenyl-(4-sulfo-butyl)-phosphonium inner salt (CAS 164982-05-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1188970-6 (accessed 2026-11-09).

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