3,3-diethyl-2,4-dihydrothieno[3,4-b][1,4]dioxepine

3,4-(2′,2′-二乙基丙烯)二氧噻吩

Also known as: 2H-thieno[3,4-b][1,4]dioxepin, 3,3-diethyl-3,4-dihydro-, 3,4-(2',2'-diethylpropylene)dioxythiophene, 3,4-(2,2-diethylpropylene)dioxythiophene, 3,3-diethyl-3,4-dihydro-2H-thieno[3,4-b][1,4]dioxepin, EDOT analog, 3,3-diethyl-3,4-dihydro-2H-thieno[3,4-b][1,4]dioxepine

3,3-diethyl-2,4-dihydrothieno[3,4-b][1,4]dioxepine (CAS 259139-19-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H16O2S and a molecular weight of 212.30900 g/mol. It is also known as 2H-thieno[3,4-b][1,4]dioxepin, 3,3-diethyl-3,4-dihydro-, 3,4-(2',2'-diethylpropylene)dioxythiophene and 3,4-(2,2-diethylpropylene)dioxythiophene. Key properties include a boiling point of 276.101ºC at 760 mmHg, a density of 1.109 g/mL at 25ºC and a flash point of 120.782ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

259139-19-0

Jingsj CID

J-1104618-1

Molecular Formula

C₁₁H₁₆O₂S

Chinese Name

3,4-(2′,2′-二乙基丙烯)二氧噻吩

Molecular Weight

212.30900 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026