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Cetylpyridinium chloride

CAS 6004-24-6

Cetylpyridinium chloride chemical structure

Concern score

Not assessed — no hazard data yet.

Cetylpyridinium chloride in plain language

What it is

Also known as Cetylpyridinium chloride monohydrate · Cetylpyridinium chloride hydrate · 1-hexadecylpyridin-1-ium;chloride;hydrate · 1-HEXADECYLPYRIDINIUM chloride monohydrate · 1-hexadecylpyridin-1-ium chloride hydrate · Ceepryn

Show all 17 names

Cepacol · CPC Monohydrate · Cetylpyridinium chloride (USP) · Cetylpyridinium chloride CRS · Cetylpyridiniumchloridemonohydrate · Hexadecylpyridinium chloride monohydrate · MLS002207106 · NB-002 · Pyridinium, 1-HEXADECYL-, chloride, monohydrate · Sprol (TN) · UNII-D9OM4SK49P

What it does

We don't have a plain-language description for Cetylpyridinium chloride yet.

Is it a concern?
We haven't assessed a concern score for this ingredient yet.

Regulation

No restrictions found. Cetylpyridinium chloride appears in these published regulatory listings.

  • In marketed US drugs
  • Inactive ingredient in US drugs
  • USFDAinactive ingredient database5 entries — 3 administration routes
    • Route: OPHTHALMIC; Dosage form: SOLUTION; Potency: 0.01 %w/wSource →
    • Route: ORAL; Dosage form: CAPSULE; Maximum daily exposure: 2 mgSource →
    • Route: ORAL; Dosage form: CAPSULE, EXTENDED RELEASE; Potency: 0.02 mgSource →
    • Route: RESPIRATORY (INHALATION); Dosage form: AEROSOL, METERED; Potency: NASource →
    • Route: RESPIRATORY (INHALATION); Dosage form: AEROSOL, SPRAY; Potency: NASource →
  • USFDAmarketed drug occurrenceFDA NDC lists this ingredient in 94 active drug products and 101 total products.
    • FDA NDC lists this ingredient in 94 active drug products and 101 total products.Source →
  • USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
    • openFDA substance registry classifies this ingredient as chemical.Source →

Evidence & sources

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

5 data sources

Where this comes from

  • FDA Inactive Ingredient Database

    regulatory · updated 2026-01-09

    Open →

  • FDA National Drug Code Directory

    regulatory · updated 2027-12-31

    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 →
Reference links (1)

Suitability

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

Fragrance avoidance

Nothing to weigh for this context yet.

No signal in this context

We have no published hazard signal for this ingredient, so we cannot say how it behaves in this context — that is missing evidence, not a clean result.

Where it has been recorded

How often FDA National Drug Code directory has listed Cetylpyridinium chloride in a product composition. These are source records, not Greenveil catalog products.

Source records

101

See products using Cetylpyridinium chloride →

Catalog

Found in these products

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

See all 145 →Find products without it →

Co-occurrence

Often appears with

Ingredients that frequently appear alongside Cetylpyridinium chloride in the catalog.