2,5-Dibromo-3,4-ethylenedioxythiophene

2,5-二溴-3,4-乙烯二氧噻吩

Also known as: 5,7-Dibromo-2,3-dihydrothieno[3,4-b][1,4]dioxine, 5,7-Dibromo-2,3-dihydrothieno[3,4-b][1,4]dioxin, 5,7-Dibromo-2,3-dihydrothieno[3,4-b]-1,4-dioxine, Thieno[3,4-b]-1,4-dioxin, 5,7-dibromo-2,3-dihydro-

2,5-Dibromo-3,4-ethylenedioxythiophene (CAS 174508-31-7) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C6H4Br2O2S and a molecular weight of 299.968 g/mol. It is also known as 5,7-Dibromo-2,3-dihydrothieno[3,4-b][1,4]dioxine, 5,7-Dibromo-2,3-dihydrothieno[3,4-b][1,4]dioxin and 5,7-Dibromo-2,3-dihydrothieno[3,4-b]-1,4-dioxine. Key properties include a melting point of 98ºC, a boiling point of 306.5±42.0 °C at 760 mmHg, a density of 2.1±0.1 g/cm3 and a flash point of 139.2±27.9 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

174508-31-7

Jingsj CID

J-1321432-6

Molecular Formula

C₆H₄Br₂O₂S

Chinese Name

2,5-二溴-3,4-乙烯二氧噻吩

Molecular Weight

299.968 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026