4,5-Dichloro-2-octyl-3(2H)-isothiazolone
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. 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-904964-3
- Molecular Formula
- C11H17Cl2NOS
- Molecular Weight
- 282.230 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 36-40ºC |
|---|---|
| Boiling Point | 322.6±52.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 148.9±30.7 °C |
| Exact Mass | 281.040802 |
| PSA | 50.24000 |
| LogP | 4.34 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.552 |
Customs & Trade Information
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 4,5-Dichloro-2-octyl-3(2H)-isothiazolone?
The CAS number of 4,5-Dichloro-2-octyl-3(2H)-isothiazolone is 64359-81-5.
What are the molecular formula and molecular weight of 4,5-Dichloro-2-octyl-3(2H)-isothiazolone?
4,5-Dichloro-2-octyl-3(2H)-isothiazolone has molecular formula C11H17Cl2NOS and molecular weight 282.230 g/mol.
What are the upstream and downstream products of 4,5-Dichloro-2-octyl-3(2H)-isothiazolone?
For 4,5-Dichloro-2-octyl-3(2H)-isothiazolone, Upstream Products: 3,3'-Dithiobis(N-octylpropionamide), 2-Octyl-4-isothiazolin-3-one.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4,5-Dichloro-2-octyl-3(2H)-isothiazolone (CAS 64359-81-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-904964-3 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.