5-(thiophen-2-yl)-1,3,4-oxadiazol-2(3H)-one

5-噻吩-2-基-1,3,4-噁二唑-2(3H)-酮

Also known as: 5-Thien-2-yl-1,3,4-oxadiazol-2(3H)-one, 1,3,4-Oxadiazol-2(3H)-one, 5-(2-thienyl)-, 5-(2-Thienyl)-1,3,4-oxadiazol-2(3H)-one, 5-(thiophen-2-yl)-2,3-dihydro-1,3,4-oxadiazol-2-one, 5-thiophen-2-yl-3H-1,3,4-oxadiazol-2-one

5-(thiophen-2-yl)-1,3,4-oxadiazol-2(3H)-one (CAS 128772-83-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H4N2O2S and a molecular weight of 168.17300 g/mol. It is also known as 5-Thien-2-yl-1,3,4-oxadiazol-2(3H)-one, 1,3,4-Oxadiazol-2(3H)-one, 5-(2-thienyl)- and 5-(2-Thienyl)-1,3,4-oxadiazol-2(3H)-one. Key property: a density of 1.68g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
128772-83-8
Jingsj CID
J-1393728-3
Molecular Formula
C6H4N2O2S
Chinese Name
5-噻吩-2-基-1,3,4-噁二唑-2(3H)-酮
Molecular Weight
168.17300 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Density1.68g/cm3

Frequently Asked Questions

What is the CAS number of 5-(thiophen-2-yl)-1,3,4-oxadiazol-2(3H)-one?

The CAS number of 5-(thiophen-2-yl)-1,3,4-oxadiazol-2(3H)-one is 128772-83-8.

What are the molecular formula and molecular weight of 5-(thiophen-2-yl)-1,3,4-oxadiazol-2(3H)-one?

5-(thiophen-2-yl)-1,3,4-oxadiazol-2(3H)-one has molecular formula C6H4N2O2S and molecular weight 168.17300 g/mol.

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

Last updated:

How to cite: Jingsj. "5-(thiophen-2-yl)-1,3,4-oxadiazol-2(3H)-one (CAS 128772-83-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1393728-3 (accessed 2026-10-25).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.