2,3-dihydrothieno[3,4-b][1,4]dioxine-5,7-dicarbaldehyde

2,3-二氢噻吩并[3,4-b][1,4]二恶英-5,7-二甲醛

Also known as: 3,4-ethylenedioxythiophene-2,5-dicarbaldehyde, 3,4-ethylenedioxythiophene-2,5-dicarboxaldehyde, 3,4-ethylenedioxy-2,5-thiophenedicarbaldehyde, thieno[3,4-b]-1,4-dioxin-5,7-dicarboxaldehyde, 2,3-dihydro-, 2,3-dihydrothieno-[3,4-b][1,4]dioxine-5,7-dicarbaldehyde

2,3-dihydrothieno[3,4-b][1,4]dioxine-5,7-dicarbaldehyde (CAS 211235-87-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H6O4S and a molecular weight of 198.19600 g/mol. It is also known as 3,4-ethylenedioxythiophene-2,5-dicarbaldehyde, 3,4-ethylenedioxythiophene-2,5-dicarboxaldehyde and 3,4-ethylenedioxy-2,5-thiophenedicarbaldehyde. Key properties include a boiling point of 403.4ºC at 760 mmHg, a density of 1.511g/cm3 and a flash point of 197.8ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
211235-87-9
Jingsj CID
J-1162834-5
Molecular Formula
C8H6O4S
Chinese Name
2,3-二氢噻吩并[3,4-b][1,4]二恶英-5,7-二甲醛
Molecular Weight
198.19600 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point403.4ºC at 760 mmHg
Density1.511g/cm3
Flash Point197.8ºC

Frequently Asked Questions

What is the CAS number of 2,3-dihydrothieno[3,4-b][1,4]dioxine-5,7-dicarbaldehyde?

The CAS number of 2,3-dihydrothieno[3,4-b][1,4]dioxine-5,7-dicarbaldehyde is 211235-87-9.

What are the molecular formula and molecular weight of 2,3-dihydrothieno[3,4-b][1,4]dioxine-5,7-dicarbaldehyde?

2,3-dihydrothieno[3,4-b][1,4]dioxine-5,7-dicarbaldehyde has molecular formula C8H6O4S and molecular weight 198.19600 g/mol.

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

Last updated:

How to cite: Jingsj. "2,3-dihydrothieno[3,4-b][1,4]dioxine-5,7-dicarbaldehyde (CAS 211235-87-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1162834-5 (accessed 2026-10-24).

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