1,8-Naphthosultone

1,8-萘磺酸内酯

Also known as: Naphth(1,8-cd)-1,2-oxathiole, 2,2-dioxide, 1,8-Naphthalenesultone, 1,8-Naphthasultone, 1,8-Naphthosulfone, 1,8-Naphthosulftone, 1-Naphthol-8-sulfonic acid sultone, 8-Hydroxynaphthalene-1-sulfonic acid sultone, Naphthosultone, Naphtho[1,8-cd][1,2]oxathiole 2,2-dioxide

1,8-Naphthosultone (CAS 83-31-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H6O3S and a molecular weight of 206.218 g/mol. It is also known as Naphth(1,8-cd)-1,2-oxathiole, 2,2-dioxide, 1,8-Naphthalenesultone and 1,8-Naphthasultone. Key properties include a melting point of 154-157 °C (dec.)(lit.), a boiling point of 419.5±18.0 °C at 760 mmHg, a density of 1.6±0.1 g/cm3 and a flash point of 207.5±21.2 °C. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

83-31-8

Jingsj CID

J-14436-8

Molecular Formula

C₁₀H₆O₃S

Chinese Name

1,8-萘磺酸内酯

Molecular Weight

206.218 g/mol

Category

Organic Acids

Last updated

8/21/2026