Overview
Piroctone olamine (CAS 68890-66-4 ), also known as Octopirox, is an antifungal and antimicrobial active used primarily in personal care and cosmetic formulations.
It functions as a preservation and biocide agent, controlling the growth of fungi and bacteria in both rinse-off and leave-on products for various industrial applications.
In anti-dandruff shampoos and scalp treatments, it targets Malassezia species as the active ingredient, serving as a regulatory-compliant alternative to zinc pyrithione.
Leave-on cosmetics such as conditioners, serums, and facial moisturizers incorporate it for its antimicrobial preservation contribution at low use concentrations in the final formula.
In pharmaceutical topical formulations, it is used in medicated shampoos and dermatological preparations where controlled antifungal efficacy is required for patient care.
Coatings and adhesive systems also employ it as a biocide to prevent microbial degradation during product storage and application across various industrial manufacturing sectors.
Piroctone olamine is supplied as a white to off-white crystalline powder. It is available in cosmetic-grade and technical-grade specifications for diverse formulation needs.
Cosmetic-grade material meets purity standards consistent with EU Cosmetics Regulation requirements. Packaging typically ranges from kilogram quantities to bulk drum supply.
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Physical Properties
| Melting Point | 134.0 to 138.0 °C |
| Boiling Point | 135-235°C[at 101 325 Pa] |
| Density | 1.1[at 20℃] |
| Appearance | White or slightly yellow crystalline powder. |
| Color | White to Off-White |
| Form | neat |
| Water Solubility | 400-50000mg/L at 20-25℃ |
| Vapor Pressure | 0-0Pa at 20-25℃ |
| Log P | 1.05-3.86 at 20-25℃ |
Safety & Handling
Danger GHS05 GHS07 GHS09 Hazard Statements H315 Causes skin irritation H318 Causes serious eye damage H335 May cause respiratory irritation H400 Very toxic to aquatic life H410 Very toxic to aquatic life with long lasting effects H412 Harmful to aquatic life with long lasting effects Precautionary Statements P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P271 Use only outdoors or in a well-ventilated area. P273 Avoid release to the environment. P280 Wear protective gloves/protective clothing/eye protection/face protection. P317 Get emergency medical help. P319 Get medical advice/attention if you feel unwell. P321 Specific treatment (see … on this label). P391 Collect spillage. P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P302+P352 IF ON SKIN: Wash with plenty of water. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P332+P317 Get emergency medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P403+P233 Store in a well-ventilated place. Keep container tightly closed. P305+P354+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Trade & Regulatory
| HS Code | 2933399090 |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 2 |
Other Names
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Chemical Properties
- CAS Number
- 68890-66-4
- EC Number
- 272-574-2
- Mol. Weight
- 298.42
- HS Code
- 2933399090
- Category
- Pharmaceutical Intermediates