1-Methylpiperazine
Also known as: 1-Methyl piperazine, Methylpiperazine, N-Methylpiperazine, N-Methyl piperazine, Piperazine, 1-methyl-, Cyclizine Related Compound A, N-Methylpiperazine, 1-methyl-piperazin
1-Methylpiperazine (CAS 109-01-3) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C5H12N2 and a molecular weight of 100.162 g/mol. Key properties include a melting point of -6 °C, a boiling point of 138.0±8.0 °C at 760 mmHg, a density of 0.9±0.1 g/cm3 and a flash point of 42.2±0.0 °C. It is classified under GHS with signal word Danger and hazard statements H226 — Flammable liquid and vapour, H312 — Harmful in contact with skin and H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 109-01-3
- Jingsj CID
- J-32558-6
- Molecular Formula
- C5H12N2
- Molecular Weight
- 100.162 g/mol
- Category
- Organic Compounds
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | -6 °C |
|---|---|
| Boiling Point | 138.0±8.0 °C at 760 mmHg |
| Density | 0.9±0.1 g/cm3 |
| Flash Point | 42.2±0.0 °C |
| Exact Mass | 100.100044 |
| PSA | 15.27000 |
| LogP | -0.18 |
| Additional Property | 3.5 (vs air) |
| Vapor Pressure | 6.9±0.3 mmHg at 25°C |
| Refractive Index | 1.442 |
| Additional Property | soluble |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
- H312 — Harmful in contact with skin
- H314 — Causes severe skin burns and eye damage
- H331 — Toxic if inhaled
Customs & Trade Information
| HS Code | 2933599090 |
|---|---|
| Summary | 2933599090. 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 1-Methylpiperazine?
The CAS number of 1-Methylpiperazine is 109-01-3.
What are the molecular formula and molecular weight of 1-Methylpiperazine?
1-Methylpiperazine has molecular formula C5H12N2 and molecular weight 100.162 g/mol.
Is 1-Methylpiperazine hazardous?
1-Methylpiperazine has GHS signal word Danger and hazard statements H226 — Flammable liquid and vapour; H312 — Harmful in contact with skin; H314 — Causes severe skin burns and eye damage.
What are the upstream and downstream products of 1-Methylpiperazine?
For 1-Methylpiperazine, Upstream Products: Diethanolamine, Piperazine, Dimethyl Carbonate; Downstream Products: Ethyl 6-fluoro-1-(4-fluorophenyl)-7-(4-methylpiperazin-1-yl)-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylate, 1-(3-Chloro-4-nitrophenyl)-4-methylpiperazine, 4-(4-Methyl-1-piperazinyl)-1-butanol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "1-Methylpiperazine (CAS 109-01-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-32558-6 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.