2-(2,3-Dihydrothieno[3,4-b][1,4]dioxin-5-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane

2-(2,3-二氢噻吩并[3,4-b][1,4]二噁英-5-基)-4,4,5,5-四甲基-1,3,2-二噁硼烷

Also known as: 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-2,3-dihydrothieno[3,4-b][1,4]dioxine, 2,3-Dihydrothieno[3,4-b][1,4]dioxine-5-boronic acid pinacol ester, 3,4-Ethylenedioxythiophene-2-boronic acid pinacol ester, 2,3-Dihydrothieno[3,4-b][1,4]dioxine-5-boronic acid pinacol ester 97%, 2-(2,3-Dihydrothieno[3,4-b][1,4]dioxin-5-yl)-4,4,5,5-tetramethyl-1,3,2-dioxoborolane, 5-(4,4,5,5-Tetramethyl-[1,3,2]dioxaborolan-2-yl)-2,3-dihydrothieno[3,4-b][1,4]dioxane, 5-(4,4,5,5-Tetramethyl-[1,3,2]dioxaborolan-2-yl)-2,3-dihydrothieno[3,4-b][1,4]dioxine, Thieno[3,4-b]-1,4-dioxin, 2,3-dihydro-5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-

2-(2,3-Dihydrothieno[3,4-b][1,4]dioxin-5-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 250726-93-3) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C12H17BO4S and a molecular weight of 268.13700 g/mol. It is also known as 5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-2,3-dihydrothieno[3,4-b][1,4]dioxine, 2,3-Dihydrothieno[3,4-b][1,4]dioxine-5-boronic acid pinacol ester and 3,4-Ethylenedioxythiophene-2-boronic acid pinacol ester. Key properties include a melting point of 93ºC, a boiling point of 372.9ºC at 760mmHg, a density of 1.21g/cm3 and a flash point of 179.3ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

250726-93-3

Jingsj CID

J-808608-0

Molecular Formula

C₁₂H₁₇BO₄S

Chinese Name

2-(2,3-二氢噻吩并[3,4-b][1,4]二噁英-5-基)-4,4,5,5-四甲基-1,3,2-二噁硼烷

Molecular Weight

268.13700 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026