1-Methylimidazole hydrogen sulfate 1-Methylimidazolium hydrogen sulfate 681281-87-8 Basionics® AC 39 CAS 681281-87-8
| CAS No. | 681281-87-8 |
| Molecular Formula | H2O4S |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1-Methylimidazole hydrogen sulfate 1-Methylimidazolium hydrogen sulfate 681281-87-8 Basionics® AC 39.
1-Methylimidazole hydrogen sulfate 1-Methylimidazolium hydrogen sulfate 681281-87-8 Basionics® AC 39 (CAS 681281-87-8) is a high-purity analytical reference standard with the molecular formula H2O4SC4H10N2 and a molecular weight of 184.21 g/mol.
1-Methylimidazole hydrogen sulfate 1-Methylimidazolium hydrogen sulfate 681281-87-8 Basionics® AC 39 (H2O4SC4H10N2) contains a carbohydrate-derived structure, an amide group, a sulfone group. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 1-Methylimidazole hydrogen sulfate 1-Methylimidazolium hydrogen sulfate 681281-87-8 Basionics® AC 39 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | H2O4S C4H10N2 |
| Molecular Weight | 184.21 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 0.0 |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Methylimidazole Standards
- 1-Methylimidazole Hydrobromide (CAS 101023-58-9)
- 5-Methylimidazole-4-carbonitrile (CAS 108257-41-6)
- 2-Methylimidazole-d6 (CAS 1173022-19-9)
- Methylimidazole impurity 5 (CAS 1185304-30-6)
- 4-Methylimidazole-d6 (CAS 1219804-79-1)
- 4-Methylimidazole-d3 (CAS 1219805-95-4)
- 1-Butyl-2-methylimidazole (CAS 13435-22-8)
- 1-Benzyl-2-methylimidazole (CAS 13750-62-4)
Recommended Standards
- N-cyclohexylmorpholine-4-carboxamide (CAS 3417-54-7)
- tert-Butyl 7-amino-2,3-dihydro-4H-benzo[b][1,4]oxazine-4-carboxylate (CAS 1171126-84-3)
- N-[5-(4-Chlorobenzoyl)-1,3-thiazol-2-yl]-N,N-dimethyliminoformamide (CAS 569350-52-3)
- 2-Chloro-5-((thiophen-3-ylmethyl)amino)benzonitrile (CAS 1156960-27-8)
- (5,5,8,8-Tetramethyl-5,6,7,8-tetrahydronaphthalen-2-yl)boronic acid (CAS 169126-63-0)
- 2-Amino-3-((tert-butoxycarbonyl)amino)propanoic acid (CAS 96895-04-4)
- 4-Chloro-6-(4-(2-fluorophenyl)piperazin-1-yl)pyrimidine (CAS 898652-05-6)
- 5-Hydroxy-3-[2-(trifluoromethyl)phenyl]isoxazole (CAS 1188055-87-9)
- 2-Furancarboxylic acid, 3-(1-propyn-1-yl)- (CAS 2592830-34-5)
- Calcineurin Autoinhibitory Peptide (CAS 148067-21-4)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com