Tributylmethylphosphonium methyl carbonate solution
Tributylmethylphosphonium methyl carbonate (CAS 120256-45-3, C15H33O3P) is an ionic liquid supplied by Tech Serve Solutions. With a molecular weight of 292.39 g/mol, this compound, presented as a solution in methanol:water (2:3) at approximately 50% concentration, serves as a versatile reagent in chemical synthesis. Its specific properties make it valuable for advanced applications, including its role in facilitating ionic liquid synthesis.
- IUPAC
- Methyltributylphosphonium methyl carbonate

Ionic Liquid Synthesis
This compound is instrumental in the synthesis of ionic liquids, acting as a key component or catalyst in advanced chemical processes. Its application is highlighted in the development of novel ionic liquid structures and functionalities.
Chemical Synthesis Reagent
Utilised as a specialist reagent in organic synthesis, it facilitates various chemical transformations. Its unique ionic nature can influence reaction pathways and product selectivity in complex syntheses.
Technology Spotlight: CBILS
Featured as a critical element in CBILS technology, which is a revolutionary tool specifically designed for ionic liquid synthesis. This application underscores its importance in cutting-edge chemical research and development.
| Molecular weight | 292.39 |
|---|---|
| Empirical formula | C15H33O3P |
| Refractive index | n20/D 1.413 |
| Concentration | ~50% in methanol: water (2:3) |
| Application | CBILS: A Revolutionary Tool for ionic liquid synthesis |



Hazard statements
- H226Flammable liquid and vapour
- H302Harmful if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
- H370Causes damage to organs
Precautionary statements
- P260Do not breathe dust, fume, gas, mist, vapours or spray
- P280Wear protective gloves, clothing and eye/face protection
- P305IF IN EYES
- P307
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | 49 °C / 120.2 °F |
| Transport (UN / ADR) | UN 1987C 3 / PGIII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | T |
| Risk statements (R) | 10-20/21/22-36/37/38-39/23/24/25 |
| Safety statements (S) | 26-36/37 |
| Anion traces | bromide (Br-): ≤10 mg/kgchloride (Cl-): ≤100 mg/kgfluoride (F-): ≤25 mg/kgnitrate (NO3-): ≤10 mg/kgphosphate (PO43-): ≤10 mg/kgsulfate (SO42-): ≤10 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 Tributylmethylphosphonium methyl carbonate solution used for?
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Tributylmethylphosphonium methyl carbonate solution (CAS 120256-45-3) is primarily used in chemical synthesis, notably as a component in ionic liquid synthesis and as a specialty reagent in organic chemistry.
What are the CAS number and formula for Tributylmethylphosphonium methyl carbonate solution?
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The CAS number is 120256-45-3 and the empirical formula is C15H33O3P.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies Tributylmethylphosphonium methyl carbonate solution at an approximate concentration of 50% in methanol:water (2:3). TSS does not represent this product as USP, BP, or EP grade.
How should Tributylmethylphosphonium methyl carbonate solution be handled safely?
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This compound is flammable and can cause skin and eye irritation. It is harmful if swallowed, inhaled, or in contact with skin. Always wear appropriate personal protective equipment, including eyeshields, gloves, and a full-face respirator, and handle in a well-ventilated area. Refer to the Safety Data Sheet for comprehensive handling information.
Is Tributylmethylphosphonium methyl carbonate solution a controlled substance?
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The provided data does not indicate that Tributylmethylphosphonium methyl carbonate solution is a controlled substance.
How is this product packed, shipped, and exported?
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Tributylmethylphosphonium methyl carbonate solution is packed and shipped according to relevant transportation regulations for hazardous materials, including UN 1987 classification. Tech Serve Solutions is experienced in global export procedures for chemical reagents.
How can I request a sample or quote for Tributylmethylphosphonium methyl carbonate solution?
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To request a sample or a quotation, please contact our sales team via the website or provide your inquiry details through the dedicated portal on the Tech Serve Solutions website.
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