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1-(2-Pyridyl)piperazine

Also known as: 2-Piperazinopyridine, 2-pyridylpiperazine, 1-(Pyridin-2-yl)piperazine, N-(2-Pyridyl)piperazine, 1-pyridin-2-ylpiperazine, 2-(1-piperazino)pyridine, 2-(1-Piperazinyl)pyridine, Piperazine, 1-(2-pyridinyl)-

1-(2-Pyridyl)piperazine (CAS 34803-66-2) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H13N3 and a molecular weight of 163.22 g/mol. Key properties include a melting point of 92-94, a boiling point of 314.4±22.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 143.9±22.3 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
34803-66-2
Jingsj CID
J-19341-9
Molecular Formula
C9H13N3
Molecular Weight
163.22 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point92-94
Boiling Point314.4±22.0 °C at 760 mmHg
Density1.1±0.1 g/cm3
Flash Point143.9±22.3 °C
Exact Mass163.110947
PSA28.16000
LogP0.19
Vapor Pressure0.0±0.7 mmHg at 25°C
Refractive Index1.547
Additional Property>500 g/L (20 ºC)

GHS Safety & Compliance

IrritantSignal word: Warning
  • H315 — Causes skin irritation
  • H319 — Causes serious eye irritation
  • H335 — May cause respiratory irritation

Customs & Trade Information

HS Code2933990090
Summary2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. 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-(2-Pyridyl)piperazine?

The CAS number of 1-(2-Pyridyl)piperazine is 34803-66-2.

What are the molecular formula and molecular weight of 1-(2-Pyridyl)piperazine?

1-(2-Pyridyl)piperazine has molecular formula C9H13N3 and molecular weight 163.22 g/mol.

Is 1-(2-Pyridyl)piperazine hazardous?

1-(2-Pyridyl)piperazine has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.

What are the upstream and downstream products of 1-(2-Pyridyl)piperazine?

For 1-(2-Pyridyl)piperazine, Upstream Products: Piperazine, 2-Bromopyridine, tert-butyl 4-(pyridin-2-yl)piperazine-1-carboxylate; Downstream Products: 1-(6-Chloropyridin-2-yl)piperazine, 3-(4-(pyridin-2-yl)piperazin-1-yl)propanoic acid, N-Methylaniline.

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-(2-Pyridyl)piperazine (CAS 34803-66-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-19341-9 (accessed 2026-11-09).

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