Introduction
Product name: Zinc Pyrithione / ZPT
Cas No.: 13463-41-7
EINECS No.: 236-671-3
Molecular formula: C10H8N2O2S2Zn
Molecular weight: 317.7
Appearance: White to off white powder
Purity: 98%min

Zinc Pyrithione is a coordination complex of zinc. It has fungistatic (that is, it inhibits the division of fungal cells) and bacteriostatic (inhibits bacterial cell division) properties and is used in the treatment of seborrhoeic dermatitis.

In medical

Zinc pyrithione is best known for its use in treating dandruff and seborrhoeic dermatitis. It also has antibacterial properties and is effective against many pathogens from the Streptococcus and Staphylococcus genera. Its other medical applications include treatments of psoriasis, eczema, ringworm, fungus, athletes foot, dry skin,atopic dermatitis, tinea, and vitiligo.

In paint

Due to its low solubility in water (8 ppm at neutral pH), zinc pyrithione is suitable for use in outdoor paintsand other products that provide protection against mildew and algae. It is an effective algaecide. It is chemically incompatible with paints relying on metal carboxylate curing agents. When used in latex paints with water containing high amount of iron, a sequestering agent that will preferentially bind the iron ions is needed. Its decomposition by ultraviolet light is slow, providing years of protection even against direct sunlight.

In sponges

Zinc pyrithione is also used as an antibacterial treatment for household sponges.