Molekula
Cetyltrimethylammonium p-toluenesulfonate (CETATS)
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
Cetyltrimethylammonium p-toluenesulfonate (CETATS) is a quaternary ammonium surfactant and phase-transfer catalyst used mainly in research, notably for studies of wormlike micelles and solution rheology and as a structure-directing template for mesoporous silica. It facilitates reactions by solubilizing inorganic salts in organic solvents. CAS: 138-32-9. Molecular formula: CH3(CH2)15N(CH3C6H4SO3)(CH3)3. Molecular weight: 455.74 g/mol. Store at ambient conditions. Signal word: Danger (corrosive, causes severe skin burns and eye damage; harmful if swallowed). Molekula supplies Cetyltrimethylammonium p-toluenesulfonate 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.
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Specifications
| Property | Value |
|---|---|
| Appearance | White powder |
| Melting Point | 245 - 250°C |
| pH | 5.0 - 8.0 (1% aq.) |
| Colour of Solution | ≤ 50 (5% w/v in Acetone) |
| Assay (HPLC) | ⩾ 99.0% |
| Identification (1H-NMR,IR) | Conforms to structure |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Transport Class | 8 |
| Packing Group | III |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 90031491 |
| CAS Number | 138-32-9 |
| Molecular Formula | CH3(CH2)15N(CH3C6H4SO3)(CH3)3 |
| Molecular Weight | 455.74 |
| SMILES | CCCCCCCCCCCCCCCC[N+](C)(C)C.CC1=CC=C(C=C1)S(=O)(=O)[O-] |
| UN Number | UN1759 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 29239001 |
| Tariff Code | 2923900090 |
Safety & GHS
-
Corrosive
GHS05
-
Health Hazard
GHS07
-
Hazardous to the Environment
GHS09
Hazard statements
- H302 Harmful if swallowed
- H314 (sub cat. 1C) Causes severe skin burns and 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
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Spanish.
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 Cetyltrimethylammonium p-toluenesulfonate (CETATS) commonly used for?
CETATS is used as a cationic surfactant in research, notably for wormlike micelle and rheology studies and as a template for mesoporous silica, and as a phase transfer catalyst in organic synthesis.
What is the chemical formula and molecular weight of CETATS?
The chemical formula is CH₃(CH₂)₁₅N(CH₃)₃(CH₃C₆H₄SO₃) and the molecular weight is 455.74 g/mol.
What safety classification does CETATS have, and how should it be stored?
CETATS is classified with the signal word 'Danger'—handle with care. Store in a tightly sealed container at ambient temperature away from incompatible substances.
What grades or purities of CETATS does Molekula supply?
Molekula supplies CETATS in technical grade and analytical standard purity levels, depending on application requirements.
Can Molekula supply CETATS in bulk quantities?
Yes, Molekula can provide CETATS in bulk, with minimum order quantities and packaging options tailored to your needs—contact us for specifics.
What documentation is provided with a CETATS order?
Each CETATS order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), and batch-specific documentation for traceability.
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.