1,1'-(2,6-Pyridinediyl)bis(3-methylimidazolium) dibromide CAS 263874-05-1
| CAS No. | 263874-05-1 |
| Molecular Formula | C13H15N5 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1,1'-(2,6-Pyridinediyl)bis(3-methylimidazolium) dibromide (CAS 263874-05-1), molecular formula C13H15N5Br and molecular weight 321.20 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution, 1,1'-(2,6-Pyridinediyl)bis(3-methylimidazolium) dibromide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 321.20 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C13H15N5 2*Br |
| Molecular Weight | 321.20 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 5 |
Related Pyridinediyl Standards
Recommended Standards
- 4-[(2-Bromoacetyl)amino]-N-ethylbenzamide (CAS 1138443-16-9)
- 5-Amino-N-hydroxy-1H-1,2,4-triazole-3-carboxamide (CAS 199292-01-8)
- 5-(Pyridin-3-yl)piperazin-2-one (CAS 1508771-69-4)
- 2-(Aminomethyl)-5-hydroxy-1-methyl-1,4-dihydropyridin-4-one dihydrobromide (CAS 1376050-72-4)
- N-[4-Cyano-3-(trifluoromethyl)phenyl]-2,2,2-trifluoroacetamide (CAS 1155800-45-5)
- 2-Azabicyclo[2.2.2]oct-5-ene (CAS 3693-58-1)
- Naltrexone Impurity 21 (CAS 64643-76-1)
- 2-(1-Hydroxy-2-methylpropan-2-yl)phenol (CAS 13524-77-1)
- 1-(3-Chlorophenyl)cyclohexan-1-amine (CAS 959140-90-0)
- Semaglutide impurity 58 (CAS CATO-C4X-222658)
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