1-(4-methylphenyl)piperidin-4-one

Also known as: 1-(4-Methylphenyl)-4-piperidinone, 1-(p-Tolyl)piperidin-4-one, 1-P-Tolyl-Piperidin-4-One, 4-Piperidinone, 1-(4-methylphenyl)-

1-(4-methylphenyl)piperidin-4-one (CAS 105123-89-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C12H15NO and a molecular weight of 189.25400 g/mol. Key properties include a boiling point of 345.647ºC at 760 mmHg, a density of 1.085g/cm3 and a flash point of 138.375ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 105123-89-5
Jingsj CID: J-1144747-5
Molecular Formula: C₁₂H₁₅NO
Molecular Weight: 189.25400 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	345.647ºC at 760 mmHg
Density	1.085g/cm3
Flash Point	138.375ºC
Exact Mass	189.11500
PSA	20.31000
LogP	2.22930
Vapor Pressure	0mmHg at 25°C
Refractive Index	1.555

Customs & Trade Information

HS Code	2933399090
Summary	2933399090. other compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 1-(4-methylphenyl)piperidin-4-one?

The CAS number of 1-(4-methylphenyl)piperidin-4-one is 105123-89-5.

What are the molecular formula and molecular weight of 1-(4-methylphenyl)piperidin-4-one?

1-(4-methylphenyl)piperidin-4-one has molecular formula C12H15NO and molecular weight 189.25400 g/mol.

What are the upstream and downstream products of 1-(4-methylphenyl)piperidin-4-one?

For 1-(4-methylphenyl)piperidin-4-one, Upstream Products: 1,5-Dichloro-3-pentanone, p-Toluidine.

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. "1-(4-methylphenyl)piperidin-4-one (CAS 105123-89-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1144747-5 (accessed 2026-11-09).

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