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4-Methylpiperazin-2-one

Also known as: 1-Methyl-3-oxopiperazine, 1-Methyl-3-piperazinone, 1-Methylpiperazin-3-one, 4-Methyl-2-piperazinone, N-Methylpiperazinone, 2-Piperazinone,4-methyl-, 4-Methyl-piperazin-2-one, 4-N-methylpiperazin-2-one, 4-methyl-2-oxo-piperazine

4-Methylpiperazin-2-one (CAS 34770-60-0) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C5H10N2O and a molecular weight of 114.146 g/mol. Key properties include a melting point of 85-89°C, a boiling point of 261.3±33.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 111.8±25.4 °C. It is classified under GHS with signal word Warning and hazard statements H302 — Harmful if swallowed, H315 — Causes skin irritation and H317 — May cause an allergic skin reaction. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
34770-60-0
Jingsj CID
J-1511355-0
Molecular Formula
C5H10N2O
Molecular Weight
114.146 g/mol
Category
Ketones
Last updated
8/21/2026

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Physicochemical Properties

Melting Point85-89°C
Boiling Point261.3±33.0 °C at 760 mmHg
Density1.0±0.1 g/cm3
Flash Point111.8±25.4 °C
Exact Mass114.079315
PSA32.34000
LogP-1.80
Vapor Pressure0.0±0.5 mmHg at 25°C
Refractive Index1.461
Storage Conditions2-8°C

GHS Safety & Compliance

IrritantSignal word: Warning
  • H302 — Harmful if swallowed
  • H315 — Causes skin irritation
  • H317 — May cause an allergic skin reaction
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2933599090
Summary2933599090. other compounds containing a pyrimidine ring (whether or not hydrogenated) or piperazine ring 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 4-Methylpiperazin-2-one?

The CAS number of 4-Methylpiperazin-2-one is 34770-60-0.

What are the molecular formula and molecular weight of 4-Methylpiperazin-2-one?

4-Methylpiperazin-2-one has molecular formula C5H10N2O and molecular weight 114.146 g/mol.

Is 4-Methylpiperazin-2-one hazardous?

4-Methylpiperazin-2-one has GHS signal word Warning and hazard statements H302 — Harmful if swallowed; H315 — Causes skin irritation; H317 — May cause an allergic skin reaction.

What are the upstream and downstream products of 4-Methylpiperazin-2-one?

For 4-Methylpiperazin-2-one, Upstream Products: Piperazin-2-one, Formaldehyde, 1-Methylpiperazine.

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

Last updated:

How to cite: Jingsj. "4-Methylpiperazin-2-one (CAS 34770-60-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1511355-0 (accessed 2026-11-09).

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