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Cetylpyridinium chloride

CAS 123-03-5 C21H38N·Cl MW 339.99 Made to order

Cetylpyridinium chloride is a quaternary ammonium compound used as an antimicrobial agent in oral care products, disinfectants, and pharmaceutical formulations. It is available in powder form with a molecular weight of 339.99 g/mol, a molecular formula of C21H38N·Cl, and a CAS number of 123-03-5. It should be stored at ambient temperatures and handled with caution due to its signal word "Danger." Molekula supplies Cetylpyridinium chloride from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

CoA by batch

Overview

Cetylpyridinium chloride is a quaternary ammonium compound used as an antimicrobial agent in oral care products, disinfectants, and pharmaceutical formulations. It is available in powder form with a molecular weight of 339.99 g/mol, a molecular formula of C21H38N·Cl, and a CAS number of 123-03-5. It should be stored at ambient temperatures and handled with caution due to its signal word "Danger." Molekula supplies Cetylpyridinium chloride from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

Specifications

Property Value
Appearance White powder
Melting Point 80 - 84 °C
Water 4.5 - 5.5%
Specification Conforms to USP specification
Assay ≥99.0%
Residue on Ignition ≤0.2%
Total Aerobic Count ≤1000cfu/g
Pyridine ≤0.02%
Heavy Metal ≤20 ppm
Total Moulds and Yeasts ≤100cfu/g

Storage & handling

Property Value
Storage Temperature Ambient
Transport Class 6.1
Packing Group II
Shelf Life 24 months
Acidity Neutral

Identification

Property Value
CAS Number 123-03-5
Molecular Formula C21H38N·Cl
Molecular Weight 339.99
SMILES CCCCCCCCCCCCCCCC[N+]1=CC=CC=C1.[Cl-]
EC / UN Number 2811
REACH Code Y110
TSCA Listed Yes
HTS Code 29333992
Tariff Code 2933399990

Safety & GHS

Danger
  • GHS pictogram — Compressed Gas Compressed Gas GHS04
  • GHS pictogram — Corrosive Corrosive GHS05
  • GHS pictogram — Toxic Toxic GHS06

Hazard statements

  • H301 Toxic if swallowed
  • H315 Causes skin irritation
  • H318 Causes serious eye damage
  • H330 Fatal if inhaled
  • H335 May cause respiratory irritation
  • H400 Very toxic to aquatic life

Precautionary statements

  • P260 Do not breathe dust/fume/gas/mist/vapours/spray
  • P273 Avoid release to the environment
  • P280 Wear protective gloves/protective clothing/eye protection/face protection
  • P284 Wear respiratory protection
  • P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
  • P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing

For research and industrial use only

Not for use in food, drugs, household, or in or on humans or animals. Consult the Safety Data Sheet before handling.

Documents

Certificate of Analysis (CoA) by batch

Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.

Pricing & pack sizes

Pack sizes & pricing

Pricing on request — packs available from research to bulk quantities.

Prices exclude VAT/sales tax and shipping. Bulk and custom pack sizes available on request.

Synonyms

No alternate names recorded for this product.

Frequently asked questions

What is cetylpyridinium chloride used for?

It is primarily used as an antimicrobial agent in oral care products, such as mouthwashes and toothpastes, due to its ability to inhibit bacterial growth.

What is the chemical formula and molecular weight of cetylpyridinium chloride?

The formula is C21H38N·Cl with a molecular weight of 339.99 g/mol.

How should cetylpyridinium chloride be stored?

It should be stored at ambient temperature, away from moisture and direct sunlight.

What grade of cetylpyridinium chloride does Molekula supply?

Molekula supplies cetylpyridinium chloride in technical grade, suitable for research and industrial applications.

Can Molekula supply cetylpyridinium chloride in bulk?

Yes, Molekula can supply cetylpyridinium chloride in bulk quantities—please contact our sales team for pricing and availability.

What documentation comes with a purchase of cetylpyridinium chloride?

Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS), compliant with GHS standards.

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Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.

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