1-Butyl-3-methylimidazolium dibutyl phosphate
1-Butyl-3-methylimidazolium dibutyl phosphate (CAS: 663199-28-8), with the molecular formula C16H33N2O4P and a molecular weight of 348.42 g/mol, is an ionic liquid. It is characterised by its imidazolium cation and dibutyl phosphate anion. This compound finds application in various chemical synthesis processes, particularly where unique solvent properties or catalytic activity are required.

Chemical Synthesis Medium
As an ionic liquid, it can serve as a versatile reaction medium, offering unique solvation properties that can influence reaction rates and selectivities. Its non-volatile nature also presents advantages in certain synthetic procedures.
Specialty Synthesis Applications
This compound is utilised in specialty synthesis areas due to its specific ionic structure and potential catalytic capabilities. It can be employed in reactions requiring a stable, polar, non-aqueous environment.
Catalysis Research
Ionic liquids like 1-Butyl-3-methylimidazolium dibutyl phosphate are explored for their potential as catalysts or catalyst supports in various organic transformations. Its properties can facilitate catalyst recycling and enhance reaction efficiency.
| Molecular weight | 348.42 |
|---|---|
| Empirical formula | C16H33N2O4P |
| Assay | ≥96.0% (HPLC/T) |
| Refractive index | n20/D 1.472 |
| Impurities tested | ≤0.5% water |

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 | Eyeshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | Xi |
| Risk statements (R) | 36/37/38 |
| Safety statements (S) | 26 |
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 1-Butyl-3-methylimidazolium dibutyl phosphate used for?
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1-Butyl-3-methylimidazolium dibutyl phosphate is primarily used in chemical synthesis, particularly in specialty synthesis applications and catalysis research, benefiting from its properties as an ionic liquid.
What is the CAS number and molecular formula for 1-Butyl-3-methylimidazolium dibutyl phosphate?
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The CAS number is 663199-28-8 and the molecular formula is C16H33N2O4P.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1-Butyl-3-methylimidazolium dibutyl phosphate with a purity of ≥96.0% (HPLC/T). This product is not supplied as USP, BP, EP, or pharmacopoeia grade.
What are the main hazards associated with 1-Butyl-3-methylimidazolium dibutyl phosphate?
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This compound is classified with GHS07 (Warning) and carries hazard statements H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation). Appropriate personal protective equipment, including eyeshields and gloves, should be used.
Is this product suitable for export?
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Yes, Tech Serve Solutions is a specialist global supplier and exporter of fine chemicals, including 1-Butyl-3-methylimidazolium dibutyl phosphate.
How can I request a sample or quote?
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To request a sample or a quote for 1-Butyl-3-methylimidazolium dibutyl phosphate, please contact our sales team through the website or by phone.
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