1. Membrane Transporter/Ion Channel
  2. Proton Pump
  3. Zinc Pyrithione

Zinc Pyrithione 

Cat. No.: HY-B0572 Purity: >98.0%
Handling Instructions

Zinc Pyrithione is an antifungal and antibacterial agent disrupting membrane transport by blocking the proton pump.

For research use only. We do not sell to patients.

Zinc Pyrithione Chemical Structure

Zinc Pyrithione Chemical Structure

CAS No. : 13463-41-7

Size Price Stock Quantity
Free Sample (0.5-1 mg)   Apply now  
10 mM * 1 mL in DMSO USD 55 In-stock
Estimated Time of Arrival: December 31
500 mg USD 50 In-stock
Estimated Time of Arrival: December 31
1 g USD 66 In-stock
Estimated Time of Arrival: December 31
5 g USD 108 In-stock
Estimated Time of Arrival: December 31
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Top Publications Citing Use of Products
  • Biological Activity

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Zinc Pyrithione is an antifungal and antibacterial agent disrupting membrane transport by blocking the proton pump. Target: Proton Pump Zinc pyrithione is considered as a coordination complex of zinc. The pyrithione ligands, which are formally monoanions, are chelated to Zn 2+ via oxygen and sulfur centers. In the crystalline state, zinc pyrithione exists as a centrosymmetric dimer, where each zinc is bonded to two sulfur and three oxygen centers. In solution, however, the dimers dissociate via scission of one Zn-O bond. Zinc pyrithione, which is a dimer but is probably biologically active as a monomer, induces plasma membrane depolarization with half-maximal effect (K1/2) of about 0.3 mM [1]. Zinc pyrithione is an unusual synthetic potentiator that potently activates both heterologous and native M channels by inducing channel opening at the resting potential [2]. Zinc pyrithione rapidly accumulated in the tissues of the exposed mussels, proportionately to both exposure concentration and time. Even though the 7-d median lethal concentration (LC50) = 8.27 μM established here appears high with respect to reported ZnPT environmental concentrations, the results indicate that this biocide could represent a threat for marine organisms in coastal environments and that further investigations on its biological effects at sublethal doses are needed [3].

Molecular Weight









Room temperature in continental US; may vary elsewhere.

Powder -20°C 3 years
  4°C 2 years
In solvent -80°C 6 months
  -20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : 33.33 mg/mL (104.91 mM; Need ultrasonic)

H2O : < 0.1 mg/mL (insoluble)

Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 3.1477 mL 15.7386 mL 31.4772 mL
5 mM 0.6295 mL 3.1477 mL 6.2954 mL
10 mM 0.3148 mL 1.5739 mL 3.1477 mL
*Please refer to the solubility information to select the appropriate solvent.
In Vivo:
  • 1.

    Add each solvent one by one:  10% DMSO    90% corn oil

    Solubility: ≥ 2.5 mg/mL (7.87 mM); Clear solution

*All of the co-solvents are provided by MCE.
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Zinc PyrithioneProton PumpBacterialFungalInhibitorinhibitorinhibit

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