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Methyltriphenylphosphonium iodide

Also known as: Triphenylmethylphosphonium iodide, Phosphonium, methyltriphenyl-, iodide, Methyl(triphenyl)phosphanium iodide, Triphenylmethylphosphine iodide, MPJ, methyltriphenylphosphanium iodide, methyl(triphenyl)phosphanium iodide

Methyltriphenylphosphonium iodide (CAS 2065-66-9) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C19H18IP and a molecular weight of 404.224 g/mol. Key property: a melting point of 183-185 °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.
2065-66-9
Jingsj CID
J-36248-3
Molecular Formula
C19H18IP
Molecular Weight
404.224 g/mol
Category
Aromatic Hydrocarbons
Last updated
8/21/2026

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Physicochemical Properties

Melting Point183-185 °C(lit.)
Exact Mass404.019073
PSA13.59000
LogP0.61430
Additional PropertySOLUBLE

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2931900090
Summary2931900090. other organo-inorganic compounds. VAT:17.0%. Tax rebate rate:13.0%. Supervision conditions:AB(certificate of inspection for goods inward,certificate of inspection for goods outward). MFN tariff:6.5%. General tariff:30.0%

Frequently Asked Questions

What is the CAS number of Methyltriphenylphosphonium iodide?

The CAS number of Methyltriphenylphosphonium iodide is 2065-66-9.

What are the molecular formula and molecular weight of Methyltriphenylphosphonium iodide?

Methyltriphenylphosphonium iodide has molecular formula C19H18IP and molecular weight 404.224 g/mol.

Is Methyltriphenylphosphonium iodide hazardous?

Methyltriphenylphosphonium iodide 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 Methyltriphenylphosphonium iodide?

For Methyltriphenylphosphonium iodide, Upstream Products: Triphenylphosphine, iodomethane, trans-Chalcone; Downstream Products: 4-Fluoro-alpha-methylstyrene, Rhodinyl acetate, 4-Fluorostyrene.

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

Last updated:

How to cite: Jingsj. "Methyltriphenylphosphonium iodide (CAS 2065-66-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-36248-3 (accessed 2026-11-07).

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