5H-dithieno[3,2-b:2',3'-d]pyran-5-one

5H-二噻吩并[3,2-b:2',3'-d]吡喃-5-酮

Also known as: 4-Oxa-1,8-dithia-as-indacen-5-one

5H-dithieno[3,2-b:2',3'-d]pyran-5-one (CAS 1295502-12-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C9H4O2S2 and a molecular weight of 208.262 g/mol. It is also known as 4-Oxa-1,8-dithia-as-indacen-5-one. Key property: a melting point of 112-114 °C(lit.). No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
1295502-12-3
Jingsj CID
J-1191053-0
Molecular Formula
C9H4O2S2
Chinese Name
5H-二噻吩并[3,2-b:2',3'-d]吡喃-5-酮
Molecular Weight
208.262 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point112-114 °C(lit.)

Frequently Asked Questions

What is the CAS number of 5H-dithieno[3,2-b:2',3'-d]pyran-5-one?

The CAS number of 5H-dithieno[3,2-b:2',3'-d]pyran-5-one is 1295502-12-3.

What are the molecular formula and molecular weight of 5H-dithieno[3,2-b:2',3'-d]pyran-5-one?

5H-dithieno[3,2-b:2',3'-d]pyran-5-one has molecular formula C9H4O2S2 and molecular weight 208.262 g/mol.

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

Last updated:

How to cite: Jingsj. "5H-dithieno[3,2-b:2',3'-d]pyran-5-one (CAS 1295502-12-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1191053-0 (accessed 2026-10-25).

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