4,4'-Bipyridinium,1,1''-(1,2-ethanediyl)bis-,dibromide CAS 81453-80-7
| CAS No. | 81453-80-7 |
| Molecular Formula | C22H20N4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4,4'-Bipyridinium,1,1''-(1,2-ethanediyl)bis-,dibromide (CAS 81453-80-7) is a high-purity analytical reference standard with the molecular formula C22H20N4Br and a molecular weight of 420.33 g/mol.
Based on its molecular formula C22H20N4Br, 4,4'-Bipyridinium,1,1''-(1,2-ethanediyl)bis-,dibromide contains a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 420.33 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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), 4,4'-Bipyridinium,1,1''-(1,2-ethanediyl)bis-,dibromide 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 | C22H20N4 Br |
| Molecular Weight | 420.33 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 14.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 4 |
Related Bipyridinium Standards
Recommended Standards
- (S)-dimethyl 2-aminopentanedioate (CAS 6525-53-7)
- 2-amino-1-(4-fluoronaphthalen-1-yl)ethan-1-one hydrochloride (CAS 2059988-68-8)
- 1-Pivaloylpyrrolidine-3-carboxylic acid (CAS 1341757-51-4)
- 2,4-Dichloro-5-(pyrrolidin-1-yl)pyrimidine (CAS 1197226-50-8)
- 5-{4H,5H-naphtho[1,2-b]thiophen-2-yl}-1,3,4-oxadiazole-2-thiol (CAS 477887-99-3)
- (3S,4R)-1-Cbz-4-methylpyrrolidine-3-carboxylic Acid (CAS 1428243-35-9)
- Nicotinamide Impurity 2 (CAS 606-68-8)
- Isothipendyl Impurity 1 (CAS 261-96-1)
- 1-(2-Bromo-5,6-dichloro-1H-indol-3-yl)ethanone (CAS 800400-79-7)
- Human IgE Pentapeptide HEPP (CAS 62087-72-3)
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