Tetraoctylammonium hydroxide solution
Tetraoctylammonium hydroxide solution (CAS: 17756-58-0) with the linear formula [CH3(CH2)7]4N(OH) is a quaternary ammonium compound with a molecular weight of 483.90 g/mol. It is supplied as a solution in methanol, typically around 20%. This strong organic base is primarily used in chemical synthesis as a reagent and phase-transfer catalyst. It is stored under refrigeration to maintain its stability and efficacy.
![Tetraoctylammonium hydroxide solution ([CH3(CH2)7]4N(OH)) — chemical structure, CAS 17756-58-0; Chemistry, fine chemical supplied by Tech Serve Solutions](/_next/image?url=https%3A%2F%2Fpub-f4d920c906024441a773a96f7098e551.r2.dev%2Fimages%2Fproducts%2F17756-58-0.png&w=3840&q=75)
Organic Synthesis Reagent
Tetraoctylammonium hydroxide serves as a potent base in various organic transformations. Its bulky, lipophilic tetraoctylammonium cation can influence reaction pathways and solubility characteristics.
Phase-Transfer Catalysis
As a quaternary ammonium salt, it can function as a phase-transfer catalyst, facilitating reactions between reactants located in different immiscible phases. This enhances reaction rates and yields in heterogeneous systems.
Strong Base Applications
Its strong basicity makes it suitable for deprotonation reactions and as a catalyst in base-mediated syntheses where conventional inorganic bases are less effective or soluble.
| Molecular weight | 483.90 |
|---|---|
| Linear formula | [CH3(CH2)7]4N(OH) |
| Concentration | ~20% in methanol (T) |
| Storage temperature | 2-8°C |




Hazard statements
- H225Highly flammable liquid and vapour
- H301Toxic if swallowed
- H314Causes severe skin burns and eye damage
- H370Causes damage to organs
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P260Do not breathe dust, fume, gas, mist, vapours or spray
- P280Wear protective gloves, clothing and eye/face protection
- P301IF SWALLOWED
- P305IF IN EYES
- P310Immediately call a POISON CENTER or doctor
| Protective equipment | Faceshields, full-face respirator (US), Gloves, Goggles, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 11 °C / 51.8 °F |
| Transport (UN / ADR) | UN 3286 3/PG 2 |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | F,T |
| Risk statements (R) | 11-23/24/25-34-39/23/24/25 |
| Safety statements (S) | 16-26-36/37/39-45 |
| Anion traces | bromide (Br-): ≤500 mg/kg |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
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 Tetraoctylammonium hydroxide solution used for?
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Tetraoctylammonium hydroxide solution (CAS: 17756-58-0) is primarily used as a strong organic base in chemical synthesis and as a phase-transfer catalyst. It is also employed in various base-mediated reactions.
What are the CAS number and formula for Tetraoctylammonium hydroxide solution?
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The CAS number is 17756-58-0, and its linear formula is [CH3(CH2)7]4N(OH).
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Tetraoctylammonium hydroxide solution at approximately 20% concentration in methanol. This is a technical/research grade material; TSS does not represent it as USP/BP/EP or any other pharmacopoeial standard.
How should Tetraoctylammonium hydroxide solution be handled safely?
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Tetraoctylammonium hydroxide solution is a Danger material, flammable, and toxic. It causes severe skin burns and eye damage (H314). It is also toxic if swallowed, in contact with skin, or if inhaled (H301 + H311 + H331) and may cause damage to organs (H370). Always use appropriate personal protective equipment, including gloves, eye protection, and respiratory protection, and handle in a well-ventilated area or fume hood. Refer to the Safety Data Sheet for full details.
How is Tetraoctylammonium hydroxide solution shipped and exported?
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Tetraoctylammonium hydroxide solution is classified under UN 3286, Hazard Class 3 (Flammable liquids), Packing Group II. Tech Serve Solutions adheres to all relevant shipping regulations for the export of hazardous chemicals.
How can I request a quote or sample?
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To request a quote or a sample of Tetraoctylammonium hydroxide solution, please contact our sales team via the website or direct email, providing your specific requirements and shipping details.
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