2,3-Dihydrothieno[3,4-b][1,4]dioxine-5-carboxylic acid

2,3-二氢噻吩并[3,4-b][1,4]二噁英-5-羧酸

Also known as: 2H,3H-Thieno[3,4-b][1,4]dioxine-5-carboxylic acid, Thieno[3,4-b]-1,4-dioxin-5-carboxylic acid, 2,3-dihydro-, 2,3-DIHYDROTHIENO[3,4-B][1,4]DIOXINE-5-CARBOXYLIC ACID, HMS1697O01

2,3-Dihydrothieno[3,4-b][1,4]dioxine-5-carboxylic acid (CAS 260063-21-6) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H6O4S and a molecular weight of 186.18500 g/mol. It is also known as 2H,3H-Thieno[3,4-b][1,4]dioxine-5-carboxylic acid, Thieno[3,4-b]-1,4-dioxin-5-carboxylic acid, 2,3-dihydro- and 2,3-DIHYDROTHIENO[3,4-B][1,4]DIOXINE-5-CARBOXYLIC ACID. Key properties include a melting point of 205ºC, a boiling point of 352.8ºC at 760mmHg, a density of 1.546g/cm3 and a flash point of 167.2ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

260063-21-6

Jingsj CID

J-1011218-4

Molecular Formula

C₇H₆O₄S

Chinese Name

2,3-二氢噻吩并[3,4-b][1,4]二噁英-5-羧酸

Molecular Weight

186.18500 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026