1-Ethyl-3-methylimidazolium hydrogen sulfate
1-Ethyl-3-methylimidazolium hydrogen sulfate (CAS 412009-61-1) is an ionic liquid with the molecular formula C6H12N2O4S and a molecular weight of 208.24 g/mol. As a member of the Basionics® AC series, this compound finds application in chemical synthesis and specialty synthesis processes. Its ionic nature and specific chemical structure lend it unique properties valuable in various research and industrial chemical transformations.
- IUPAC
- Basionics® AC 25

Chemical Synthesis
This ionic liquid serves as a medium or catalyst in various chemical synthesis reactions. Its properties allow for unique reaction pathways and potentially improved yields or selectivity in organic transformations.
Specialty Synthesis
Utilised in specialised synthetic procedures, this compound is part of the Basionics® AC range, indicating its suitability for advanced chemical processes requiring specific ionic liquid characteristics.
Ionic Liquid Applications
As an imidazolium-based ionic liquid, it offers a low vapour pressure and tunable solvent properties, making it a versatile component in modern chemical research and development.
| Molecular weight | 208.24 |
|---|---|
| Empirical formula | C6H12N2O4S |
| Assay | 95% |
| Application | Basionic Ionic Liquids |

Hazard statements
- H314Causes severe skin burns and eye damage
Precautionary statements
- P280Wear protective gloves, clothing and eye/face protection
- 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 |
|---|---|
| Transport (UN / ADR) | UN 3265 8 / PGII |
| Water hazard class (WGK, DE) | 3 |
| Hazard codes (EU) | C |
| Risk statements (R) | 34 |
| Safety statements (S) | 26-36/37/39-45 |
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-Ethyl-3-methylimidazolium hydrogen sulfate used for?
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1-Ethyl-3-methylimidazolium hydrogen sulfate is primarily used in chemical synthesis and specialty synthesis applications, falling under the category of Basionics ionic liquids.
What are the CAS number and formula for 1-Ethyl-3-methylimidazolium hydrogen sulfate?
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The CAS number for 1-Ethyl-3-methylimidazolium hydrogen sulfate is 412009-61-1, and its empirical formula is C6H12N2O4S.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 1-Ethyl-3-methylimidazolium hydrogen sulfate with an assay of 95%. This product is classified under the Basionics® AC 25 designation and is not represented as USP, BP, EP, or pharmacopoeia grade.
How should 1-Ethyl-3-methylimidazolium hydrogen sulfate be handled safely?
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This compound is classified as Danger with hazard statement H314 (Causes severe skin burns and eye damage). Appropriate personal protective equipment, including face shields, gloves, goggles, and suitable respiratory protection, is mandatory. Handle with extreme caution to avoid contact.
How is 1-Ethyl-3-methylimidazolium hydrogen sulfate packed and exported?
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1-Ethyl-3-methylimidazolium hydrogen sulfate is packed and exported according to UN 3265, Class 8, Packing Group II regulations for corrosive liquid, acidic, organic, n.o.s. (1-Ethyl-3-methylimidazolium hydrogen sulfate).
How can I request a sample or quote for 1-Ethyl-3-methylimidazolium hydrogen sulfate?
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To request a sample or obtain a quote for 1-Ethyl-3-methylimidazolium hydrogen sulfate, please contact our sales department via the website or direct inquiry channels.
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