2-(trimethylsilyl)ethoxymethyltriphenylphosphonium chloride

Also known as: 2-(trimethylsilyl)ethoxymethyltriphenylphosphonium chloride, SEM-triphenylphosphonium chloride, triphenyl(2-trimethylsilylethoxymethyl)phosphanium chloride, 2-(trimethylsilyl)ethoxymethyl-triphenylphosphonium chloride, triphenyl{[2-(trimethylsilyl)ethoxy]methyl}phosphonium chloride, 2-(trime-silyl)ethoxymethyl-triphenyl-phosphonium chloride, MFCD00043159, Phosphonium, triphenyl[[2-(trimethylsilyl)ethoxy]methyl]-, chloride (1:1)

2-(trimethylsilyl)ethoxymethyltriphenylphosphonium chloride (CAS 82495-75-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C24H30ClOPSi and a molecular weight of 429.007 g/mol. Key property: a melting point of 145-149 °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. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 82495-75-8
Jingsj CID: J-39088-5
Molecular Formula: C₂₄H₃₀ClOPSi
Molecular Weight: 429.007 g/mol
Category: Aromatic Hydrocarbons
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	145-149 °C(lit.)
Exact Mass	428.149200
PSA	22.82000
LogP	2.29680

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 2-(trimethylsilyl)ethoxymethyltriphenylphosphonium chloride?

The CAS number of 2-(trimethylsilyl)ethoxymethyltriphenylphosphonium chloride is 82495-75-8.

What are the molecular formula and molecular weight of 2-(trimethylsilyl)ethoxymethyltriphenylphosphonium chloride?

2-(trimethylsilyl)ethoxymethyltriphenylphosphonium chloride has molecular formula C24H30ClOPSi and molecular weight 429.007 g/mol.

Is 2-(trimethylsilyl)ethoxymethyltriphenylphosphonium chloride hazardous?

2-(trimethylsilyl)ethoxymethyltriphenylphosphonium chloride 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 2-(trimethylsilyl)ethoxymethyltriphenylphosphonium chloride?

For 2-(trimethylsilyl)ethoxymethyltriphenylphosphonium chloride, Upstream Products: 2-(Trimethylsilyl)ethoxymethyl chloride, Triphenylphosphine, 2-(Trimethylsilyl)ethanol.

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. "2-(trimethylsilyl)ethoxymethyltriphenylphosphonium chloride (CAS 82495-75-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-39088-5 (accessed 2026-11-09).

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