Qzuhou Ebright Chemicals Co.,Ltd

Zinc Pyrithione 50%

Zinc Pyrithione 50%

  1. Basic Information
Product name Zinc Pyrithione 50% (ZPT-50)
Chemical name Pyrithione zinc,

2-Pyridinethiol 1-Oxide Zinc Salt

CAS No. 13463-41-7
EINECS No: 236-671-3
Molecular Formula: C10H8N2O2S2Zn
Molecular Weight: 317.722
Structural Formula:  


  1. Technical Specification
Item Specification
Appearance White suspension
Assay ≥48%
Zinc assay 9.3%-11.3%
PH (5% solution) 6.5-8.5


  1.  Application field

ZPT-50 can be used in shampoos for dandruff, it inhibits the growth of Gram-positive and negative bacteria and molds. It can effectively care for the hair, delay the aging of the hair, and control the generation of gray hair and hair loss.

The maximum allowable mass fraction of zinc pyrithione in cosmetic is 0.5%, and it is only used in products that are washed away after use. The use concentration of one stage is 250-1000mg/kg (active substance), which can be used in gel, cream, lotion, dusting powder and anti-dandruff shampoo, as well as in deodorant and disinfection products.

In addition, it is also used as a cosmetic preservative, oil agent, paint biocide; as a bactericide for products such as coatings and plastics, it is also widely used.


  1. Packing

Standard packaging is 25kg per drum.

Other package sizes are available upon request.


  1. Storage

Zinc pyrithione 50% shall be store in a well-ventilated, cool, dry area, out of direct sunlight. Keep containers tightly closed when not in use.


  1. Period of validity

24 months

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