2-Octyl-4-isothiazolin-3-one
Also known as: 2-Octyl-2H-isothiazol-3-one, 2-Octyl-3(2H)-isothiazolone, 2-n-Octyl-4-isothiazolin-3-one, Octhilinone, 2-Octyl-1,2-thiazol-3(2H)-one, 2-octylisothiazolin-3-one, Kathon SP 70, Micro-chek skane, Skane 8, Pancil, MFCD00072473
2-Octyl-4-isothiazolin-3-one (CAS 26530-20-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C11H19NOS and a molecular weight of 213.340 g/mol. Key properties include a melting point of 23 °C, a boiling point of 304.5±25.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 137.9±23.2 °C. It is classified under GHS with signal word Danger and hazard statements H302 — Harmful if swallowed, H311 — Toxic in contact with skin and H331 — Toxic if inhaled. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 26530-20-1
- Jingsj CID
- J-9805-2
- Molecular Formula
- C11H19NOS
- Molecular Weight
- 213.340 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 23 °C |
|---|---|
| Boiling Point | 304.5±25.0 °C at 760 mmHg |
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 137.9±23.2 °C |
| Exact Mass | 213.118729 |
| PSA | 50.24000 |
| LogP | 3.77 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.519 |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| Additional Property | <0.1 g/100 mL at 19 ºC |
GHS Safety & Compliance
- H302 — Harmful if swallowed
- H311 — Toxic in contact with skin
- H331 — Toxic if inhaled
- H314 — Causes severe skin burns and eye damage
- H317 — May cause an allergic skin reaction
- H410 — Very toxic to aquatic life with long lasting effects
Customs & Trade Information
| HS Code | 2934100017 |
|---|---|
| Summary | 2934100017 2-octylisothiazol-3(2h)-one。supervision conditions:s(import or export registration certificate for pesticides)。VAT:17.0%。tax rebate rate:9.0%。MFN tarrif:6.5%。general tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 2-Octyl-4-isothiazolin-3-one?
The CAS number of 2-Octyl-4-isothiazolin-3-one is 26530-20-1.
What are the molecular formula and molecular weight of 2-Octyl-4-isothiazolin-3-one?
2-Octyl-4-isothiazolin-3-one has molecular formula C11H19NOS and molecular weight 213.340 g/mol.
Is 2-Octyl-4-isothiazolin-3-one hazardous?
2-Octyl-4-isothiazolin-3-one has GHS signal word Danger and hazard statements H302 — Harmful if swallowed; H311 — Toxic in contact with skin; H331 — Toxic if inhaled.
What are the upstream and downstream products of 2-Octyl-4-isothiazolin-3-one?
For 2-Octyl-4-isothiazolin-3-one, Upstream Products: Chlorobenzene, 3,3'-Dithiobis(N-octylpropionamide), 1,2-Dichlorobenzene; Downstream Products: 4,5-Dichloro-2-octyl-3(2H)-isothiazolone, 4-chloro-2-octyl-2H-isothiazol-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. "2-Octyl-4-isothiazolin-3-one (CAS 26530-20-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-9805-2 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.