Preservatives & Biocides
REACH
Octhilinone
CAS Number
26530-20-1
EC Number
247-761-7
Abbreviation
OIT
What is Octhilinone?
Octhilinone (CAS 26530-20-1), abbreviated OIT and also known as 2-Octyl-4-isothiazolin-3-one, is a broad-spectrum biocide that prevents microbial degradation.
Where is Octhilinone used?
- Coatings: dry-film preservative protecting cured paint from fungal and algal growth
- Adhesives, sealants and elastomers: protection against microbial attack in storage and humid exposure
- Textile, leather and paper processing: control of spoilage organisms in aqueous baths and finished goods
- Metalworking fluids and lubricants: suppression of bacteria that cause emulsion breakdown and odors
- It targets bacteria, fungi and algae in personal care and industrial process fluids.
Good to know: Personal care applications may require material meeting specific purity thresholds for safety.
Commercial specifications
- Liquid concentrate, typically a solution in carrier solvents or water
- Active concentrations of 45% or higher
Other Names (Synonyms)
Octyl-4-isothiazol-3-one|Octyl-3(2H)-isothiazolone|2-Octyl-4-isothiazolin-3-one|2-Octyl-3(2H)-isothiazolone|2-Octyl-3-isothioazolone|2-Octyl-3-isothiazolone|2-Octyl-3-isothiazolinone|2-n-Octyl-4-isothiazolin-3-one|OIT
What are the physical properties of Octhilinone?
Melting Point <25 °C
Boiling Point 120 °C
Density 1.04
Flash Point 23°C
Appearance Yellow solid or clear dark amber liquid.
Color White or Colorless to Yellow
Form neat
Water Solubility <0.1 g/100 mL at 19 ºC
Vapor Pressure 4.9hPa at 25℃
Refractive Index 1.5500 (estimate)
Log P 2.61 at 25℃
How is Octhilinone classified and handled safely? Learn More
Danger
GHS05· Corrosive GHS06· Toxic GHS09· Environmental Hazard GHS07· Irritant GHS08· Health Hazard
Hazard Statements
H301 Toxic if swallowed
H302 Harmful if swallowed
H311 Toxic in contact with skin
H314 Causes severe skin burns and eye damage
Precautionary Statements
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P262 Do not get in eyes, on skin, or on clothing.
P264 Wash … thoroughly after handling.
Which trade and regulatory codes apply to Octhilinone?
HS Code 29341000
Storage Class 6.1A - Combustible acute toxic Cat. 1 and 2
very toxic hazardous materials
WGK (Germany) 3