4,5-Dichloro-2-octyl-3(2H)-isothiazolone

4,5-二氯-2-辛基-4-异噻唑啉-3-酮

Also known as: DCOIT, 4,5-Dichloro-2-n-octyl-4-isothiazolin-3-one, 4,5-Dichloro-2-n-octyl-3(2H)-isothiazolone, 3(2H)-Isothiazolone, 4,5-dichloro-2-octyl-, 4,5-Dichloro-2-octyl-1,2-thiazol-3(2H)-one, Sea-Nine 211, Kathon 287T, DCOIT-30, DCOIT-99, EINECS 264-843-8, MFCD04034673

4,5-Dichloro-2-octyl-3(2H)-isothiazolone (CAS 64359-81-5) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H17Cl2NOS and a molecular weight of 282.230 g/mol. It is also known as DCOIT, 4,5-Dichloro-2-n-octyl-4-isothiazolin-3-one and 4,5-Dichloro-2-n-octyl-3(2H)-isothiazolone. Key properties include a melting point of 36-40ºC, a boiling point of 322.6±52.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 148.9±30.7 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.

64359-81-5

Jingsj CID

J-904964-2

Molecular Formula

C₁₁H₁₇Cl₂NOS

Chinese Name

4,5-二氯-2-辛基-4-异噻唑啉-3-酮

Molecular Weight

282.230 g/mol

Category

Pharma Intermediates

Last updated

8/21/2026