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Piribedil

Also known as: 2-[4-(1,3-Benzodioxol-5-ylmethyl)piperazin-1-yl]pyrimidine, 2-(4-(Benzo[d][1,3]dioxol-5-ylmethyl)piperazin-1-yl)pyrimidine, Trivastal, Trivastan, ET-495, EU-4200, Piribendyl, Piribedilum [INN-Latin], Piribedile [DCIT]

Piribedil (CAS 3605-01-4) is a compound in the Organic Compounds category listed in the Jingsj chemical database. It has the molecular formula C16H18N4O2 and a molecular weight of 298.340 g/mol. Key properties include a melting point of 98 °C, a boiling point of 469.4±55.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 237.7±31.5 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
3605-01-4
Jingsj CID
J-1980514-2
Molecular Formula
C16H18N4O2
Molecular Weight
298.340 g/mol
Category
Organic Compounds
Last updated
8/21/2026

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Physicochemical Properties

Melting Point98 °C
Boiling Point469.4±55.0 °C at 760 mmHg
Density1.3±0.1 g/cm3
Flash Point237.7±31.5 °C
Exact Mass298.142975
PSA50.72000
LogP2.36
Vapor Pressure0.0±1.2 mmHg at 25°C
Refractive Index1.632
Storage Conditions2-8°C

Activity & Biological Data

TargetD2R, hα1A-AR[1]
Additional Information[1]. Mark J. Milla, et al. Antiparkinsonian Agent Piribedil Displays Antagonist Properties at Native, Rat, and Cloned, Human α2 -Adrenoceptors: Cellular and Functional Characterization. JPET, 2001, 297 (3) 876-887.

Customs & Trade Information

HS Code2934999090
Summary2934999090. other heterocyclic compounds. 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 Piribedil?

The CAS number of Piribedil is 3605-01-4.

What are the molecular formula and molecular weight of Piribedil?

Piribedil has molecular formula C16H18N4O2 and molecular weight 298.340 g/mol.

What are the upstream and downstream products of Piribedil?

For Piribedil, Upstream Products: Piperonyl alcohol, 2-(1-Piperazinyl)pyrimidine, Formic Acid.

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

Last updated:

How to cite: Jingsj. "Piribedil (CAS 3605-01-4)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1980514-2 (accessed 2026-11-09).

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