1-(2-Pyrimidinyl)-4-(4-aminobutyl)piperazine

Also known as: 4-(4-pyrimidin-2-ylpiperazin-1-yl)butan-1-amine, 4-(Aminobutyl)-1-(2-pyrimidinyl)-piperazine, 1-Piperazinebutanamine, 4-(2-pyrimidinyl)-, GEPI-006, RSYY (Lifitegrast)-9, Tandospirone Impurity 12

1-(2-Pyrimidinyl)-4-(4-aminobutyl)piperazine (CAS 33386-20-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C12H21N5 and a molecular weight of 235.32900 g/mol. Key properties include a boiling point of 404.4ºC at 760 mmHg, a density of 1.102g/cm3 and a flash point of 198.4ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 33386-20-8
Jingsj CID: J-1497508-7
Molecular Formula: C₁₂H₂₁N₅
Molecular Weight: 235.32900 g/mol
Category: Pharma Intermediates
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	404.4ºC at 760 mmHg
Density	1.102g/cm3
Flash Point	198.4ºC
Exact Mass	235.18000
PSA	58.28000
LogP	1.04070
Refractive Index	1.553

Customs & Trade Information

HS Code	2933990090
Summary	2933990090. 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-Pyrimidinyl)-4-(4-aminobutyl)piperazine?

The CAS number of 1-(2-Pyrimidinyl)-4-(4-aminobutyl)piperazine is 33386-20-8.

What are the molecular formula and molecular weight of 1-(2-Pyrimidinyl)-4-(4-aminobutyl)piperazine?

1-(2-Pyrimidinyl)-4-(4-aminobutyl)piperazine has molecular formula C12H21N5 and molecular weight 235.32900 g/mol.

What are the upstream and downstream products of 1-(2-Pyrimidinyl)-4-(4-aminobutyl)piperazine?

For 1-(2-Pyrimidinyl)-4-(4-aminobutyl)piperazine, Upstream Products: 2-(1-Piperazinyl)pyrimidine, N-(4-Bromobutyl)phthalimide, 2-(1-piperazinyl)pyrimidine dihydrochloride; Downstream Products: Buspirone, Tandospirone, Zalospirone.

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

Last updated: 8/21/2026

How to cite: Jingsj. "1-(2-Pyrimidinyl)-4-(4-aminobutyl)piperazine (CAS 33386-20-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1497508-7 (accessed 2026-11-09).

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