Biocide Manufacturer

Shandong IRO Biocide Chemicals Co., Ltd. specializes in water treatment biocides and organic biocides for 10 years.
Biocides products include glutaraldehyde, benzalkonium chloride(bkc), glyoxal, bronopol, thps, isothiazolinones, dbnpa, dbdmh, bcdmh and dcdmh.

Home >> Isothiazolinones >> 2-n-Octyl-4-Isothiazolin-3-One

2-n-Octyl-4-Isothiazolin-3-One (OIT)

CAS No.: 26530-20-1

Molecular formula: C11H19NOS    Molecular Weight: 213.34

Structural Formula:

OIT Structural Formula 


The active content of OIT is 45% or 95%. The specific gravity of OIT is 1.03~1.04. It is a low toxicity biocide specifically developed for the complete microbiological protection of water based and solvent based products against bacterial and fungal spoilage in the wet state.


Item Index
Active gontent 45% or 95%
Specific gravity 1.03~1.04
Appearance Amber liquid
Solvent 1,2-propane glycol
Loss on drying ≤0.20%


OIT is effective against mildew, bacteria and fungi. It is widely used in a variety of industrial applications, such as: water treatment, paper pulp, coating & painting, metal cutting fluid, personal care products, cosmetics etc.

Package and Storage:

OIT is packed in 25kg or 200kg plastic drum, or 1000kg IBC.


OIT, n-Octyl-4-Isothiazolin-3-One, NOIT, Mildewcide OIT;