Molekula
Octadecyltrimethylammonium chloride
Octadecyltrimethylammonium chloride is a quaternary ammonium compound used as a surfactant, antimicrobial agent, and cationic modifier in industrial and laboratory applications. It is a white to off-white solid, soluble in water and organic solvents. CAS: 112-03-8, Molecular formula: C21H46NCl, Molecular weight: 348.05 g/mol, stored at ambient temperature. Signal word: Danger. Molekula supplies Octadecyltrimethylammonium chloride from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Overview
Octadecyltrimethylammonium chloride is a quaternary ammonium compound used as a surfactant, antimicrobial agent, and cationic modifier in industrial and laboratory applications. It is a white to off-white solid, soluble in water and organic solvents. CAS: 112-03-8, Molecular formula: C21H46NCl, Molecular weight: 348.05 g/mol, stored at ambient temperature. Signal word: Danger. Molekula supplies Octadecyltrimethylammonium chloride from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Pricing & pack sizes
Specifications
| Property | Value |
|---|---|
| Appearance | Light Yellow to White Powder |
| Water | ≤1.0% |
| Heavy metals | ≤0.001% |
| Identification | Conforms to reference |
| pH | 6-8 |
| Fe | ≤0.001% |
| Assay | ≥99.0% |
| Residue on Ignition | ≤0.5% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 8 |
| Packing Group | II |
| Shelf Life | 24 months |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| SKU | 61986888 |
| CAS Number | 112-03-8 |
| Molecular Formula | CH3(CH2)17N(Cl)(CH3)3 |
| Molecular Weight | 348.05 |
| SMILES | CCCCCCCCCCCCCCCCCC[N+](C)(C)C.[Cl-] |
| EC / UN Number | 3261 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2923.90.01.00 |
| Tariff Code | 2923900090 |
Safety & GHS
-
Corrosive
GHS05
-
Health Hazard
GHS07
-
Hazardous to the Environment
GHS09
Hazard statements
- H302 Harmful if swallowed
- H312 Harmful in contact with skin
- H314 (sub cat. 1C) Causes severe skin burns and eye damage
- H318 Causes serious eye damage
- H400 Very toxic to aquatic life
- H410 Very toxic to aquatic life with long lasting effects
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
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P302+352 IF ON SKIN: Wash with soap and water
- 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
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
No alternate names recorded for this product.
Frequently asked questions
What is octadecyltrimethylammonium chloride used for?
It is commonly used as a surfactant, phase-transfer catalyst, and in the formulation of antistatic agents and water repellents.
What is the chemical formula and molecular weight?
The formula is CH3(CH2)17N(Cl)(CH3)3 with a molecular weight of 348.05 g/mol.
How should it be stored?
Store at ambient temperature, away from moisture and incompatible materials.
What grade is available?
Available in technical grade; custom grades may be available upon request.
Can Molekula supply it in bulk?
Yes, bulk quantities are available—please contact our sales team for pricing and availability.
What documentation comes with the order?
Each order includes a Certificate of Analysis and Safety Data Sheet (SDS) with the shipment.
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.