Molekula
Cetylpyridinium chloride
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
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.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White powder |
| Melting Point | 80 - 84 °C |
| Water | 4.5 - 5.5% |
| Heavy metals | ≤20 ppm |
| Specification | Conforms to USP specification |
| Assay | ≥99.0% |
| Residue on Ignition | ≤0.2% |
| Total Aerobic Count | ≤1000cfu/g |
| Pyridine | ≤0.02% |
| Mould & Yeast | ≤100cfu/g |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 6.1 |
| Packing Group | II |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White powder |
| Melting Point | 80 °C |
| Solubility (other solvents) | Very soluble in water, chloroform |
| log P (octanol/water) | 1.71 |
Source: PubChem CID 31239 (HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 89968119 |
| CAS Number | 123-03-5 |
| IUPAC Name | 1-hexadecylpyridin-1-ium chloride |
| EC Number | 204-593-9 |
| Molecular Formula | C21H38N·Cl |
| Molecular Weight | 339.99 |
| Exact Mass | 339.2693 |
| SMILES | CCCCCCCCCCCCCCCC[N+]1=CC=CC=C1.[Cl-] |
| InChIKey | YMKDRGPMQRFJGP-UHFFFAOYSA-M |
| InChI | InChI=1S/C21H38N.ClH/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-16-19-22-20-17-15-18-21-22;/h15,17-18,20-21H,2-14,16,19H2,1H3;1H/q+1;/p-1 |
| PubChem CID | 31239 |
| UN Number | UN2811 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29333992 |
| Tariff Code | 2933399990 |
Safety & GHS
-
Corrosive
GHS05
-
Toxic
GHS06
-
Hazardous to the Environment
GHS09
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
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.
Synonyms
- Acetoquat CPC
- Aktivex
- Biosept
- Cepacol
- Ceprim
- Cetamium
- Dobendan
- hexadecylpyridinium chloride
- Pristacin
- Pyrisept
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.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.