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3-methylpiperidin-2-one

Also known as: 2-Methyl-5-pentanelactam, 2-Piperidinone, 3-methyl-, 3-Methyl-2-oxopiperidine, 3-Methyl-2-piperidinone, 3-Methyl-2-piperidone, 3-Methyl-piperidin-2-one

3-methylpiperidin-2-one (CAS 3768-43-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H11NO and a molecular weight of 113.15800 g/mol. Key properties include a melting point of 64-65ºC, a boiling point of 254ºC at 760mmHg, a density of 0.951g/cm3 and a flash point of 138.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3768-43-2
Jingsj CID
J-1504475-4
Molecular Formula
C6H11NO
Molecular Weight
113.15800 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point64-65ºC
Boiling Point254ºC at 760mmHg
Density0.951g/cm3
Flash Point138.6ºC
Exact Mass113.08400
PSA29.10000
LogP0.86130
Refractive Index1.438

Customs & Trade Information

HS Code2933790090
Summary2933790090. other lactams. VAT:17.0%. Tax rebate rate:9.0%. . MFN tariff:9.0%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 3-methylpiperidin-2-one?

The CAS number of 3-methylpiperidin-2-one is 3768-43-2.

What are the molecular formula and molecular weight of 3-methylpiperidin-2-one?

3-methylpiperidin-2-one has molecular formula C6H11NO and molecular weight 113.15800 g/mol.

What are the upstream and downstream products of 3-methylpiperidin-2-one?

For 3-methylpiperidin-2-one, Upstream Products: Ethyl nicotinate, 3-Methylpiperidine, 6-methoxy-2,3,4,5-tetrahydropyridine; Downstream Products: Caprolactam.

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

Last updated:

How to cite: Jingsj. "3-methylpiperidin-2-one (CAS 3768-43-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1504475-4 (accessed 2026-11-09).

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