2-Octyl-2H-isothiazol-3-one
- CAS No.
- 26530-20-1
- Chemical Name:
- 2-Octyl-2H-isothiazol-3-one
- Synonyms
- OIT;OCTHILINONE;OCTYLISOTHIAZOLINONE;2-N-OCTYL-4-ISOTHIAZOLIN-3-ONE;OIT-98;2-OCTYL-4-ISOTHIAZOLIN-3-ONE;2-octyl-3(2h)-isothiazolon;2-OCTYL-3(2H)-ISOTHIAZOLONE;OIT-45;kathon 893
- CBNumber:
- CB3221648
- Molecular Formula:
- C11H19NOS
- Molecular Weight:
- 213.34
- MDL Number:
- MFCD00072473
- MOL File:
- 26530-20-1.mol
- MSDS File:
- SDS
- TDS File:
- TDS
| Product description | Number | Pack Size | Price |
| 2-Octyl-4-isothiazolin-3-one PESTANAL?, analytical standard | 46078 | 250mg | $183 |
| 2-n-Octyl-4-isothiazolin-3-one >98.0%(GC) | O0343 | 5g | $37 |
| 2-n-Octyl-4-isothiazolin-3-one >98.0%(GC) | O0343 | 25g | $105 |
| Octhilinone | O5475 | 250mg | $326 |
| Octhilinone | O5475 | 2.5g | $638 |
| More product size | |||
| Melting point | <25 °C |
|---|---|
| Boiling point | 120°C |
| Density | 1.04 |
| vapor pressure | 4.9hPa at 25℃ |
| refractive index | 1.5500 (estimate) |
| Flash point | 23℃ |
| storage temp. | Sealed in dry,2-8°C |
| solubility | Chloroform (Slightly), Ethyl Acetate (Slightly) |
| pka | -2.04±0.20(Predicted) |
| color | White or Colorless to Yellow |
| Water Solubility | <0.1 g/100 mL at 19 ºC |
| Merck | 14,6755 |
| BRN | 1211137 |
| Henry's Law Constant | 4.8×102 mol/(m3Pa) at 25℃, Duchowicz et al. (2020) |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| Major Application |
agriculture environmental |
| Cosmetics Ingredients Functions | ANTIMICROBIAL |
| InChI | 1S/C11H19NOS/c1-2-3-4-5-6-7-9-12-11(13)8-10-14-12/h8,10H,2-7,9H2,1H3 |
| InChIKey | JPMIIZHYYWMHDT-UHFFFAOYSA-N |
| SMILES | CCCCCCCCN1SC=CC1=O |
| LogP | 2.61 at 25℃ |
| CAS DataBase Reference | 26530-20-1(CAS DataBase Reference) |
| EWG's Food Scores | 4-5 |
| FDA UNII | 4LFS24GD0V |
| NIST Chemistry Reference | 3(2H)-isothiazolone, 2-octyl-(26530-20-1) |
| EPA Substance Registry System | Octhilinone (26530-20-1) |
| UNSPSC Code | 41116107 |
| NACRES | NA.24 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |    GHS05,GHS06,GHS09 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H301+H311-H314-H317-H330-H410 | |||||||||
| Precautionary statements | P260-P273-P280-P303+P361+P353-P304+P340+P310-P305+P351+P338 | |||||||||
| PPE | Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter | |||||||||
| Hazard Codes | T;N,N,T | |||||||||
| Risk Statements | 22-23/24-34-43-50/53 | |||||||||
| Safety Statements | 1/2-26-36/37/39-45-60-61 | |||||||||
| RIDADR | 2922 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | NX8156900 | |||||||||
| TSCA | TSCA listed | |||||||||
| HazardClass | 8 | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 29341000 | |||||||||
| Storage Class | 6.1A - Combustible acute toxic Cat. 1 and 2 very toxic hazardous materials |
|||||||||
| Hazard Classifications | Acute Tox. 2 Inhalation Acute Tox. 3 Dermal Acute Tox. 3 Oral Aquatic Acute 1 Aquatic Chronic 1 Eye Dam. 1 Skin Corr. 1B Skin Sens. 1A |
|||||||||
| Hazardous Substances Data | 26530-20-1(Hazardous Substances Data) | |||||||||
| Toxicity | LD50 orl-rat: 550 mg/kg MosJN# 15AUG79 | |||||||||
| REACH Registrations | Active | |||||||||
| NFPA 704 |
|
2-Octyl-2H-isothiazol-3-one price More Price(32)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | 46078 | 2-Octyl-4-isothiazolin-3-one PESTANAL?, analytical standard | 26530-20-1 | 250mg | $183 | 2026-04-30 | Buy |
| TCI Chemical | O0343 | 2-n-Octyl-4-isothiazolin-3-one >98.0%(GC) | 26530-20-1 | 5g | $37 | 2026-04-30 | Buy |
| TCI Chemical | O0343 | 2-n-Octyl-4-isothiazolin-3-one >98.0%(GC) | 26530-20-1 | 25g | $105 | 2026-04-30 | Buy |
| Usbiological | O5475 | Octhilinone | 26530-20-1 | 250mg | $326 | 2026-06-03 | Buy |
| Usbiological | O5475 | Octhilinone | 26530-20-1 | 2.5g | $638 | 2026-06-03 | Buy |
2-Octyl-2H-isothiazol-3-one Chemical Properties,Uses,Production
Description
This isothiazolione, octylisothiazolinone, is contained in relatively fewer products than other isothiazolinones.
Chemical Properties
Yellow solid or clear dark amber liquid.
Chemical Properties
Light Yellow Oil
Uses
2-n-Octyl-4-isothiazolin-3-one is a mildeweide; bactericide; fungicide; biocide in cooling-tower water; in paints, cutting oils, cosmetics, and shampoos; leather preservation; wound protectant for pruning cuts.
Uses
Fungicide. Biocide in cooling-tower water, paints, cutting oils, cosmetics and shampoo; for leather preservation.
Uses
Fungicide. Antimicrobial agent
Definition
ChEBI: A member of the class of 1,2-thiazole that is 1,2-thiazol-3-one substituted on the nitrogen (position 2) by an octyl group. A fungicide and antibacterial agent, it is used for treatment of canker and other fungal and bacterial diseases in fruit trees. It i no longer approved for use within the European Union.
General Description
Clear dark amber liquid. Used as a fungicide.
Air & Water Reactions
Insoluble in water.
Reactivity Profile
2-Octyl-2H-isothiazol-3-one reacts as an isothiocyanate. Isothiocyanates are incompatible with many classes of compounds, reacting exothermically to release toxic gases. Reactions with amines, aldehydes, alcohols, alkali metals, ketones, mercaptans, strong oxidizers, hydrides, phenols, and peroxides can cause vigorous releases of heat.
Fire Hazard
2-Octyl-2H-isothiazol-3-one is probably combustible.
Flammability and Explosibility
Non flammable
Contact allergens
This isothiazolinone, contained in relatively few products compared to other isothiazolinones, is used in cleaning and polishing agents, latex paints, stains, adhesives, wood and leather preservatives, metalworking fluids (cutting oils), and plastic manufacture.
Safety Profile
Moderately toxic by ingestion and skin contact. A skin and severe eye irritant. A rmldewcide. When heated to decomposition it emits very toxic fumes of SOx and NOx. See also KETONES.
Potential Exposure
Isothiazolone/isothiocyanate/heteroaramatic fungicide and microbiocide used on textiles, in metalworking fluids, and some water thinned paints. Its use as a fungicide on cotton was canceled in the United States and the tolerances were revoked in 1998.
Shipping
UN2922 Corrosive liquids, toxic, n.o.s., Hazard class: 8; Labels: 8-Corrosive material, 6.1-Poisonous materials.
Incompatibilities
Oxidizers. Contact with hydrogen peroxide may form explosive material. Isothiocyanates are incompatible with many classes of compounds, reacting exothermically to release toxic gases. Reactions with amines, aldehydes, alcohols, alkali metals, ketones, mercaptans, strong oxidizers, hydrides, phenols, and peroxides can cause vigorous releases of heat. Ketones behave a weak acid. Forms water soluble alkali metal salts. Ketones are reactive with many acids and bases liberating heat and flammable gases. The amount of heat may be sufficient to start a fire in the unreacted portion of the ketone. Ketones react with reducing agents such as hydrides, alkali metals, and nitrides to produce flammable hydrogen gas and heat. Ketones are incompatible with isocyanates, aldehydes, cyanides, peroxides, and anhydrides. They react violently with aldehydes, nitric acid, and perchloric acid.
Toxics Screening Level
The initial threshold screening level (ITSL) for octylisothiazolone is 2 μg/m3 based on an annual averaging time.
Waste Disposal
Consult with environmental regulatory agencies for guidance on acceptable disposal practices. Generators of waste containing this contaminant (≥100 kg/mo) must conform with EPA regulations governing storage, transportation, treatment, and waste disposal. Under 40 CFR 261.5 small quantity generators of this waste may qualify for partial exclusion from hazardous waste regulations.
2-Octyl-2H-isothiazol-3-one Preparation Products And Raw materials
Raw materials
Preparation Products
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hebei Chuanghai Biotechnology Co., Ltd | +8615350571055 | Sibel@chuanghaibio.com | China | 8738 | 58 |
| Shaanxi Dideu Medichem Co. Ltd | +8617392709771 | 1097@dideu.com | China | 3992 | 58 |
| Hebei Yanxi Chemical Co., Ltd. | +8618531123677 | faithe@yan-xi.com | China | 5853 | 58 |
| Hebei Chuanghai Biotechnology Co,.LTD | +86-86-13131129325 +8613131129325 | sales1@chuanghaibio.com | China | 5228 | 58 |
| Hebei Chuanghai Biotechnology Co., Ltd | +8615531151365 | mina@chuanghaibio.com | China | 18126 | 58 |
| Hebei Zhuanglai Chemical Trading Co.,Ltd | +8613343047651 | admin@zlchemi.com | China | 3692 | 58 |
| Shandong Deshang Chemical Co., Ltd. | +86-0531-8875-2665 +8613153039501 | info@deshangchem.com | China | 661 | 58 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21587 | 55 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418679 +8618949832763 | info@tnjchem.com | China | 2988 | 55 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | sales@coreychem.com | China | 29815 | 58 |
View Lastest Price from 2-Octyl-2H-isothiazol-3-one manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-05-28 | 2-Octyl-2H-isothiazol-3-one
26530-20-1
|
$2.00-5.00 | 1KG | 99% | 10000kg | Hebei Chuanghai Biotechnology Co,.LTD | |
 |
2026-05-21 | 2-Octyl-2H-isothiazol-3-one
26530-20-1
|
1KG | 99% | 1000mt/year | Jinan Finer Chemical Co., Ltd | ||
 |
2026-05-15 | 2-Octyl-2H-isothiazol-3-one
26530-20-1
|
1000KG | Molecular weight: 213.34 | 100T | Baoji Guokang Healthchem Co., Ltd. |
-
- 2-Octyl-2H-isothiazol-3-one
26530-20-1
- $2.00-5.00
- 99%
- Hebei Chuanghai Biotechnology Co,.LTD
-
- 2-Octyl-2H-isothiazol-3-one
26530-20-1
- $0.00
- 99%
- Jinan Finer Chemical Co., Ltd
-
- 2-Octyl-2H-isothiazol-3-one
26530-20-1
- $0.00
- Molecular weight: 213.34
- Baoji Guokang Healthchem Co., Ltd.
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