1,1'-Bis(4-formylphenyl)-[4,4'-bipyridine]-1,1'-diiumbromide CAS 2393907-39-4
| CAS No. | 2393907-39-4 |
| Molecular Formula | C24H18N2O2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of 1,1'-Bis(4-formylphenyl)-[4,4'-bipyridine]-1,1'-diiumbromide (C24H18N2O2Br) is characterized by a steroid core, an amide group, a hydroxyl group, an ether linkage, bromine substitution. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
1,1'-Bis(4-formylphenyl)-[4,4'-bipyridine]-1,1'-diiumbromide (CAS 2393907-39-4), molecular formula C24H18N2O2Br and molecular weight 446.32 g/mol, is a CATO reference standard with documented purity and traceability.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 1,1'-Bis(4-formylphenyl)-[4,4'-bipyridine]-1,1'-diiumbromide 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 | C24H18N2O2 Br |
| Molecular Weight | 446.32 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 16.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1999 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
Related Bis Standards
- 2-(3-Formylphenyl)benzoic acid (CAS 100538-35-0)
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- 3-(4-Formylphenyl)-3-methylbutanoic acid (CAS 1023814-83-6)
- 2-Formylphenyl benzenesulfonate (CAS 107189-77-5)
- 4-Formylphenyl 4-chlorobenzoate (CAS 108577-34-0)
- Ethyl 3-(3-formylphenyl)propanoate (CAS 110114-05-1)
- 4-(3-Formylphenyl)phenylboronic acid (CAS 1101866-02-7)
- Ethyl 4-(4-formylphenyl)piperazine-1-carboxylate (CAS 111131-81-8)
Recommended Standards
- 2-(1-Tetrazolyl)phenol (CAS 180859-18-1)
- BDP TR maleimide (CAS 2183473-37-0)
- 2-Acetamido-3-(2-methoxyphenyl)propanoic acid (CAS 193546-29-1)
- 3,3-Difluoro-1-(methylsulfonyl)piperidine-4-carboxylic acid (CAS 1873435-73-4)
- 3-Chloro-N-((tetrahydro-2H-pyran-4-yl)methyl)aniline (CAS 1250728-27-8)
- 3-(4-Ethoxyphenyl)-1,2,4-thiadiazol-5-amine (CAS 919070-07-8)
- 3-Oxabicyclo[3.3.1]nonan-9-one (CAS 101567-96-8)
- Potassium trifluoro(2-(pyridin-3-yl)ethyl)borate (CAS 1802417-91-9)
- Ethyl 4,6-dichloro-8-fluoroquinoline-3-carboxylate (CAS 338795-17-8)
- Glu17-Semaglutide (CAS CATO-C4X-2226209)
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