Hexadecyltrimethylammonium p-toluenesulfonate
Hexadecyltrimethylammonium p-toluenesulfonate (CAS: 138-32-9) is a cationic surfactant with the molecular formula CH3(CH2)15N(CH3C6H4SO3)(CH3)3 and a molecular weight of 455.74 g/mol. This compound functions as a detergent, finding utility in scientific research for developing novel materials and investigating the properties of nanomaterials. Tech Serve Solutions provides this chemical for laboratory and research applications.
- IUPAC
- Cetyltrimethylammonium p-toluenesulfonate
- Synonyms
- Cetyltrimethylammonium p-toluenesulfonate

Material Science Research
Used in studies for developing silica grafted polydentate copper (II) complexes, contributing to advancements in catalysis and material synthesis.
Nanomaterial Dispersion Studies
Investigated for its role in the dispersibility and bundle defoliation of single-walled carbon nanotubes, aiding in the understanding and application of nanomaterials.
Cationic Detergent Applications
Serves as a cationic detergent in various laboratory settings, facilitating processes that require surfactant activity.
| Molecular weight | 455.74 |
|---|---|
| Linear formula | CH3(CH2)15N(CH3C6H4SO3)(CH3)3 |
| Application | Hexadecyltrimethylammonium p-toluenesulfonate has been used in a study to develop a silica grafted polydentate copper (II) complex. 1 It has also been used in a study to investigate the dispersibility and bundle defoliation of single-walled carbon nanotubes. 2 |

Hazard statements
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements
- P261Avoid breathing dust, fume, gas or vapours
- P305IF IN EYES
| Protective equipment | dust mask type N95 (US), Eyeshields, Gloves |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26-36 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Description | cationic |
|---|
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Hexadecyltrimethylammonium p-toluenesulfonate used for?
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This compound is used in scientific research, including the development of silica grafted polydentate copper (II) complexes and investigations into the dispersibility of single-walled carbon nanotubes. It functions as a cationic detergent.
What is the CAS number and chemical formula for Hexadecyltrimethylammonium p-toluenesulfonate?
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The CAS number is 138-32-9, and its chemical formula is CH3(CH2)15N(CH3C6H4SO3)(CH3)3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies this chemical for research and laboratory use. The specific assay or grade depends on the product batch; it is not represented as USP, BP, EP, or pharmacopoeia grade.
How should Hexadecyltrimethylammonium p-toluenesulfonate be handled?
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Handle with appropriate personal protective equipment, including a dust mask type N95 (US), eyeshields, and gloves. It may cause skin irritation (H315), serious eye irritation (H319), and respiratory irritation (H335). Use in a well-ventilated area.
Is Hexadecyltrimethylammonium p-toluenesulfonate a controlled substance?
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The provided data does not indicate that Hexadecyltrimethylammonium p-toluenesulfonate is a controlled substance.
How is Hexadecyltrimethylammonium p-toluenesulfonate packed and shipped?
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This chemical is packed according to standard laboratory reagent guidelines and is available for global export. Please contact us for specific shipping details.
How can I request a quote or sample?
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To request a quote or a sample, please use the contact form on our website or call our sales department directly. Provide the product name and CAS number for faster service.
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