Isothiazolinones CAS 26172-55-4

1. Isothiazolinones are broad-spectrum preservatives used in personal care products such as shampoos, conditioners, body washes, lotions, and makeup to inhibit the growth of bacteria, fungi, and yeast, preventing product spoilage and extending shelf life . Common combinations include methylchloroisothiazolinone (CMIT) with methylisothiazolinone (MIT), known commercially as Kathon CG .
2. In industrial applications, the compound serves as a microbicide in cooling water systems, paper mills, oil extraction systems, and metalworking fluids, where Isothiazolinones CAS 26172-55-4 controls slime-forming bacteria, algae, and fungi that can cause equipment corrosion and biofouling .
3. Isothiazolinones are incorporated into paints, coatings, adhesives, and wood preservatives to prevent microbial degradation during storage and use . Dichlorooctylisothiazolinone (DCOIT) is widely used as an antifouling agent in marine paints .
4. In household and institutional products, Isothiazolinones CAS 26172-55-4 is added to detergents, cleaners, fabric softeners, and disinfectants to maintain product freshness by suppressing microbial growth in moist, organic-rich environments .

1. Isothiazolinones must be stored in tightly sealed, chemically resistant containers (e.g., HDPE plastic) in a cool, dry, well-ventilated area away from direct sunlight and heat sources; recommended storage at 2-8°C or in a cool, dark place . The compound has limited water solubility and is unstable under alkaline conditions, elevated temperatures, and UV exposure .
2. Isothiazolinones CAS 26172-55-4 is classified with GHS hazard statements H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H317 (May cause an allergic skin reaction), with signal word "Warning" or "Danger" depending on concentration. Isothiazolinones are strong sensitizers known to cause allergic contact dermatitis .
3. Personnel must wear chemical-resistant gloves (nitrile or neoprene), safety goggles with side-shields, and protective clothing when handling this substance; ensure adequate ventilation in work areas to avoid inhalation of mists or vapors. Occupational asthma has been reported in manufacturing plants .
4. Keep Isothiazolinones CAS 26172-55-4 away from incompatible materials such as strong oxidizing agents, strong acids, and strong bases to prevent decomposition. Store separately from reducing metals. Do not contact with skin, eyes, or clothing; wash thoroughly after handling .

1. Isolate the spill area, ensure adequate ventilation, and wear full personal protective equipment including chemical-resistant gloves, safety goggles, and suitable respirator (NIOSH-approved) when cleaning up isothiazolinones .
2. Collect Isothiazolinones CAS 26172-55-4 by absorbing with inert absorbent material (e.g., sand, vermiculite, diatomaceous earth) using non-sparking tools, and place into suitable closed containers for disposal .
3. Avoid creating splashes or mists during cleanup to prevent skin and eye exposure; prevent the product from entering drains, sewers, or water courses due to high aquatic toxicity .
4. Dispose of collected material according to local, state, and federal environmental regulations through licensed chemical disposal facilities. Do not release into the environment.

1. Isothiazolinones are not classified as highly flammable but may decompose under fire conditions, emitting toxic fumes including carbon monoxide, carbon dioxide, hydrogen chloride, hydrogen sulfide, nitrogen oxides, and sulfur oxides .
2. Use water spray, dry chemical powder, carbon dioxide, or alcohol-resistant foam to extinguish fires involving the product. Do not use a direct water jet as Isothiazolinones CAS 26172-55-4 may scatter burning material.
3. Firefighters should wear self-contained breathing apparatus (SCBA) in pressure-demand, NIOSH-approved, and full protective gear when handling fires involving isothiazolinones due to hazardous decomposition gases generated during thermal decomposition .
4. During combustion, may emit irritant and toxic fumes; contain fire runoff to prevent environmental contamination. Avoid release of extinguishing water into drains or water courses due to aquatic toxicity.