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ethyl 3-(thiophen-2-yl)piperazine-1-carboxylate

Also known as: 1-Piperazinecarboxylic acid, 3-(2-thienyl)-, ethyl ester, Ethyl 3-(2-thienyl)-1-piperazinecarboxylate, Ethyl 3-thien-2-yl-piperazine-1-carboxylate, 3-Thiophen-2-yl-piperazine-1-carboxylic acid ethyl ester, 3-Thien-2-yl-piperazine-1-carboxylic acid ethyl ester

ethyl 3-(thiophen-2-yl)piperazine-1-carboxylate (CAS 85803-50-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H16N2O2S and a molecular weight of 240.32200 g/mol. Key properties include a boiling point of 363.4ºC at 760 mmHg, a density of 1.193g/cm3 and a flash point of 173.6ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
85803-50-5
Jingsj CID
J-35744-8
Molecular Formula
C11H16N2O2S
Molecular Weight
240.32200 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point363.4ºC at 760 mmHg
Density1.193g/cm3
Flash Point173.6ºC
Exact Mass240.09300
PSA69.81000
LogP2.11760
Refractive Index1.546

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 ethyl 3-(thiophen-2-yl)piperazine-1-carboxylate?

The CAS number of ethyl 3-(thiophen-2-yl)piperazine-1-carboxylate is 85803-50-5.

What are the molecular formula and molecular weight of ethyl 3-(thiophen-2-yl)piperazine-1-carboxylate?

ethyl 3-(thiophen-2-yl)piperazine-1-carboxylate has molecular formula C11H16N2O2S and molecular weight 240.32200 g/mol.

What are the upstream and downstream products of ethyl 3-(thiophen-2-yl)piperazine-1-carboxylate?

For ethyl 3-(thiophen-2-yl)piperazine-1-carboxylate, Upstream Products: 2-Thienylglyoxal, 2-(2-Thienyl)piperazine.

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

Last updated:

How to cite: Jingsj. "ethyl 3-(thiophen-2-yl)piperazine-1-carboxylate (CAS 85803-50-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-35744-8 (accessed 2026-11-09).

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