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N-Methoxy-N-methyl(triphenylphosphoranylidene)acetamide

Also known as: N-Methoxy-N-methyl-2-(triphenylphosphoranylidene)acetamide, (N-Methoxymethylaminocarbonylmethylene)triphenylphosphorane, [N-Methoxymethylaminocarbonylmethylene]-triphenylphosphorane, Acetamide, N-methoxy-N-methyl-2-(triphenylphosphoranylidene)-, N-methoxy-N-methyl-2-(triphenyl-l5-phosphanylidene)acetamide, N-methoxy-N-methylamino(triphenylphosphoranylidene)acetamide

N-Methoxy-N-methyl(triphenylphosphoranylidene)acetamide (CAS 129986-67-0) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C22H22NO2P and a molecular weight of 363.38900 g/mol. Key properties include a melting point of 183ºC, a boiling point of 495.6ºC at 760 mmHg, a density of 1.18g/cm3 and a flash point of 253.5ºC. 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.
129986-67-0
Jingsj CID
J-32611-4
Molecular Formula
C22H22NO2P
Molecular Weight
363.38900 g/mol
Category
Organic Bases
Last updated
8/21/2026
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Physicochemical Properties

Melting Point183ºC
Boiling Point495.6ºC at 760 mmHg
Density1.18g/cm3
Flash Point253.5ºC
Exact Mass363.13900
PSA39.35000
LogP2.80250
Vapor Pressure5.83E-10mmHg at 25°C
Refractive Index1.612

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 N-Methoxy-N-methyl(triphenylphosphoranylidene)acetamide?

The CAS number of N-Methoxy-N-methyl(triphenylphosphoranylidene)acetamide is 129986-67-0.

What are the molecular formula and molecular weight of N-Methoxy-N-methyl(triphenylphosphoranylidene)acetamide?

N-Methoxy-N-methyl(triphenylphosphoranylidene)acetamide has molecular formula C22H22NO2P and molecular weight 363.38900 g/mol.

Is N-Methoxy-N-methyl(triphenylphosphoranylidene)acetamide hazardous?

N-Methoxy-N-methyl(triphenylphosphoranylidene)acetamide 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:

How to cite: Jingsj. "N-Methoxy-N-methyl(triphenylphosphoranylidene)acetamide (CAS 129986-67-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32611-4 (accessed 2026-11-09).

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