Zinc pyrithione
CAS 13463-41-7
EC 236-671-3
Formula C10H8N2O2S2Zn
MW 317.7 g/mol
Salts & Minerals Personal Care & CosmeticsWater TreatmentCoatings, Adhesives, Sealants & Elastomers Preservation & Biocide
Description
Zinc pyrithione (ZPT, CAS 13463-41-7) is a coordination compound of zinc and pyrithione, commercially known under trade names such as Zinc Omadine and Omadine Zinc. It carries no E-code designation and is categorised under HS code 29419000. It is supplied as a powder under the Salts & Minerals category.
In antidandruff shampoos and scalp treatments, ZPT disrupts fungal membrane transport, inhibiting the growth of Malassezia species responsible for dandruff. In marine and architectural coatings, it acts as a broad-spectrum biocide, preventing microbial fouling and biofilm formation on submerged or exterior surfaces. Water treatment formulations use it to control microbial contamination in process water systems.
Zinc pyrithione is available in powder grade suitable for cosmetic, coatings, and industrial formulations. It falls under REACH regulation and requires an up-to-date Safety Data Sheet for EU procurement. Buyers should confirm compliance with Biocidal Products Regulation (BPR) requirements for relevant end-use applications.
In antidandruff shampoos and scalp treatments, ZPT disrupts fungal membrane transport, inhibiting the growth of Malassezia species responsible for dandruff. In marine and architectural coatings, it acts as a broad-spectrum biocide, preventing microbial fouling and biofilm formation on submerged or exterior surfaces. Water treatment formulations use it to control microbial contamination in process water systems.
Zinc pyrithione is available in powder grade suitable for cosmetic, coatings, and industrial formulations. It falls under REACH regulation and requires an up-to-date Safety Data Sheet for EU procurement. Buyers should confirm compliance with Biocidal Products Regulation (BPR) requirements for relevant end-use applications.
Physical Properties
| Melting Point | 240 °C (decomp) |
| Density | 1.782 g/cm³ @ Temp: 25 °C |
| Color | White to Orange to Green |
| Odor | Mild Characteristic |
| Form | Powder |
| Water Solubility | Insoluble (<0.1 g/100 mL at 21 ºC) |
| Vapor Pressure | 0Pa at 25℃ |
| Log P | 0.9 at 25℃ and pH7.5-7.7 |
Safety & Handling (Learn More)
Danger GHS05 GHS06 GHS08 GHS09 GHS07
H
H301H302H315H317H318H319H330H331H332H335H360H361H370H372H400H410
P
P203P260P261P264P270P271P272P273P280P284P316P317P318P319P320P321P330P391P405P501P264+P265P301+P316P301+P317P302+P352P304+P340P308+P316P332+P317P333+P317P337+P317P362+P364P403+P233P305+P351+P338P305+P354+P338
Trade & Regulatory
| HS Code | 29419000 |
| UN Number | 2811 |
| ADR Class | 6.1 |
| Packing Group | II |
| Storage Class | 6.1A - Combustible acute toxic Cat. 1 and 2 very toxic hazardous materials |
| WGK (Germany) | 3 |
Other Names
Pyrithion-ZinkPyrithione ZincZPTde-squamanOmadine Zinc1-HYDROXYPYRIDINE-2-THIONE ZINC
Related Products
Raw Materials
Need a chemical? Get a quote within 24 hours.