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Potassium thiocyanate

CAS 4495-15-2 · 40/100 · High conf.

Also registered as 6 other CAS numbers

14314-32-0 · 77044-25-8 · 170159-46-3 · 885624-03-3 · 2239311-10-3 · 333-20-0

Potassium thiocyanate chemical structure

Concern score

40/100Moderate concern based on regulatory listings.
High confidence

Potassium thiocyanate in plain language

What it is

Also known as Arterocyn · Aterocyn · Ckns · Kscn · Kyonate · Potassium sulfocyanate

Show all 17 names

Potassium sulfocyanide · Potassium isothiocyanate · Potassium rhodanate · Potassium thiocyanate ACS grade · Potassium thiocyanide · Rhocya · Rodanca · Thiocyanate de potassium · potassium salt Thiocyanic acid · Thiocyanic acid, potassium salt (1:1) · potassium rhodanide

What it does

Used in cosmetics as a light stabiliser.

  • Light stabilizer
  • Stabiliser
Is it a concern?
Moderate concern: no hazard classifications on record. It is listed for cosmetic use in the EU.

Why it's flagged

EPA CPDat observed this chemical in 33 composition records across product categories including Laboratory supplies, Industrial products, Personal care.

The score describes this ingredient's chemical identity — its hazard profile from published classifications and regulatory status — not the safety of any product it appears in.

Regulation

No restrictions found. Potassium thiocyanate appears in these published regulatory listings.

Recorded in these product areas

  • Found in consumer products
  • Beauty
  • Cleaning
  • Industrial
  • EUCosIngActiveListed in CosIng inventory for cosmetic use.
    • Listed in CosIng inventory for cosmetic use.Source →
  • EUEFSAConclusion on Pesticides Peer ReviewConclusion on the peer review of the pesticide risk assessment of the active substance potassium thiocyanate (EFSA)
    • Conclusion on the peer review of the pesticide risk assessment of the active substance potassium thiocyanate (EFSA)Source →
  • EUEFSAEFSA opinionScientific Opinion on Evaluation of the Toxicological Relevance of Pesticide Metabolites for Dietary Risk Assessment (EFSA PPR)
    • Scientific Opinion on Evaluation of the Toxicological Relevance of Pesticide Metabolites for Dietary Risk Assessment (EFSA PPR)Source →
  • USEPAcommercial use observedEPA CPDat observed this chemical in 33 composition records across product categories including Laboratory supplies, Industrial products, Personal care. EPA CPDat classifies this chemical for functional uses including Stabilizing agent, No specific technical function.
    • EPA CPDat observed this chemical in 33 composition records across product categories including Laboratory supplies, Industrial products, Personal care. EPA CPDat classifies this chemical for functional uses including Stabilizing agent, No specific technical function.Source →
  • USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
    • openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

Independent scientific assessments cited by the records we hold, with the year and link where the record gives one.

  • SCCS

    EU Scientific Committee on Consumer Safety

    No SCCS opinion on file.

  • CIR

    Cosmetic Ingredient Review (US expert panel)

    No CIR safety assessment on file.

  • EFSA

    European Food Safety Authority

    • Conclusion on the peer review of the pesticide risk assessment of the active substance potassium thiocyanate (EFSA)

      2013 · EU EFSA listing · Read the source →

    • Scientific Opinion on Evaluation of the Toxicological Relevance of Pesticide Metabolites for Dietary Risk Assessment (EFSA PPR)

      2012 · EU EFSA listing · Read the source →

Evidence & sources

No graded research studies for Potassium thiocyanate yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

7 data sources

Where this comes from

  • CosIng

    regulatory · updated 2026-09-23

    Open →

  • EFSA OpenFoodTox

    regulatory · updated 2026-10-04

    Open →

  • EPA Chemical and Products Database

    exposure · updated July 2016

    Open →

  • EPA DSSTox Identifiers

    chemistry · updated 2025-12-29

    Open →

  • FDA GSRS UNII

    registry · updated 2026-02-26

    Open →

  • openFDA Substance

    registry · updated 2026-05-24

    Open →

  • PubChem Live Enrichment

    chemistry · updated 2026-05-17

    Open →

Allergen profile

Canonical allergen markers detected on this ingredient. Each row is derived from the ingredient’s name or synonyms matching a known allergen class — useful when scanning a label for a specific allergy context.

  • SoyContains · Oral (ingested)

    Source: chemindex_name_match

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Food use

Food-use source coverage is present in the current record.

Good fit

The ingredient appears in food-oriented source coverage or allowed-use references, which makes food use easier to support than a context with no domain signal at all.

Fragrance avoidance

No fragrance-linked caution surfaced in the current profile.

Good fit

This ingredient does not currently read as a fragrance-linked driver in the published evidence and hazard profile.

Where it has been recorded

How often EPA CPDat has listed Potassium thiocyanate in a product composition. These are source records, not Greenveil catalog products.

Source records

33

Named organisations

6

Laboratory suppliesIndustrial productsPersonal care

Typical roles

Light stabilizerStabiliser
See products using Potassium thiocyanate →

Catalog

Found in these products

Their ingredient lists include Potassium thiocyanate; each product's own rating depends on its whole formula, so it is shown on the product page, not here.

See all 29 →Find products without it →