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N-Methylparoxetine

Also known as: (3S,4R)-3-(1,3-benzodioxol-5-yloxymethyl)-4-(4-fluorophenyl)-1-methylpiperidine, (3S,4R)-3-[(1,3-Benzodioxol-5-yloxy)methyl]-4-(4-fluorophenyl)-1-methylpiperidine, 3-[(1,3-Benzodioxol-5-yloxy)methyl]-4-(4-fluorophenyl)-1-methylpiperidine, MFCD03788781, Paroxetine Impurity 9, Paroxetine Related Compound F, PAR-Me

N-Methylparoxetine (CAS 110429-36-2) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C20H22FNO3 and a molecular weight of 343.392 g/mol. Key properties include a melting point of 111 °C, a boiling point of 443.7±45.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 222.1±28.7 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed and H410 — Very toxic to aquatic life with long lasting effects. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
110429-36-2
Jingsj CID
J-1990949-0
Molecular Formula
C20H22FNO3
Molecular Weight
343.392 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point111 °C
Boiling Point443.7±45.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point222.1±28.7 °C
Exact Mass343.158386
PSA30.93000
LogP3.91
Vapor Pressure0.0±1.1 mmHg at 25°C
Refractive Index1.562
Storage ConditionsHygroscopic, -20°C Freezer, Under Inert Atmosphere

GHS Safety & Compliance

Acute Toxicity / Environmental HazardSignal word: Danger
  • H301 — Toxic if swallowed
  • H410 — Very toxic to aquatic life with long lasting effects

Frequently Asked Questions

What is the CAS number of N-Methylparoxetine?

The CAS number of N-Methylparoxetine is 110429-36-2.

What are the molecular formula and molecular weight of N-Methylparoxetine?

N-Methylparoxetine has molecular formula C20H22FNO3 and molecular weight 343.392 g/mol.

Is N-Methylparoxetine hazardous?

N-Methylparoxetine has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H410 — Very toxic to aquatic life with long lasting effects.

What are the upstream and downstream products of N-Methylparoxetine?

For N-Methylparoxetine, Upstream Products: Sesamol, [(3S,4R)-4-(4-fluorophenyl)-1-methylpiperidin-3-yl]methyl 4-methylbenzenesulfonate, Paroxetine hydrochloride hemihydrate; Downstream Products: Paroxetine, Paroxetine hydrochloride hemihydrate.

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-Methylparoxetine (CAS 110429-36-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1990949-0 (accessed 2026-11-09).

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