SUNCHEM

Sodium pyrithione (SPT)

Sodium pyrithione (SPT) is the sodium salt of 2-mercaptopyridine-1-oxide, a broad-spectrum biocide with strong activity against bacteria and fungi at low use concentrations. It is widely used as an antidandruff agent in shampoos, a preservative in paints, and an antimicrobial additive in plastics and textiles.…

3811-73-2
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  • Samples for your trials
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CAS No.3811-73-2
FormulaC5H6NNaOS
SynonymsSodium Pyrithione; 1-Hydroxy-2-pyridinethione sodium salt; 2-Mercaptopyridine-1-oxide sodium salt; Pyrithione sodium salt; 1-hydroxy-2(1H)-pyridinethione sodium salt

Product overview & key benefits

Sodium pyrithione (SPT) is the sodium salt of 2-mercaptopyridine-1-oxide, a broad-spectrum biocide with strong activity against bacteria and fungi at low use concentrations. It is widely used as an antidandruff agent in shampoos, a preservative in paints, and an antimicrobial additive in plastics and textiles. SUNCHEM supports international buyers with Sodium Pyrithione (SPT) sourcing from qualified Chinese producers, with quality documentation, export coordination, and logistics support.

Technical specifications

Specification available on request.

Applications by polymer

Antidandruff shampoo and scalp treatment active
Water-based paint and coating preservative
Antimicrobial additive for plastics and polymers
Textile and fiber antimicrobial treatment
Personal care product preservative
Industrial water treatment biocide
Biofouling prevention in industrial systems

From first email to approved supply

01

Send your RFQ

Share your application, quantity, destination and current grade.

02

Review the documents

Review the producer TDS, a recent COA and SDS with the quotation.

03

Trial a sample

Run your own tests against your current grade.

04

Lock the spec

Put approved lot limits into the contract and check every COA against them.

Tell us your requirement. We match the grade.

Share your application, required quantity and destination.

Email david@sunchemgroup.com

Discuss your Sodium pyrithione (SPT) requirements

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