4,4＇-Bipyridyl CAS 553-26-4
| CAS No. | 553-26-4 |
| Molecular Formula | C10H8N2 |
| Molecular Weight | 156.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4,4＇-Bipyridyl (CAS 553-26-4) is a high-purity analytical reference standard with the molecular formula C10H8N2 and a molecular weight of 156.18 g/mol.
The molecular framework of 4,4＇-Bipyridyl (C10H8N2) is characterized by a nitrogen-containing heterocyclic scaffold, a nitrile group. 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. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), 4,4＇-Bipyridyl 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 | C10H8N2 |
| Molecular Weight | 156.18 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Nitrogen Atoms | 2 |
Related Bipyridyl Standards
- 3,3'-Bipyridyl (CAS 581-46-4)
- 2,4'-Bipyridyl (CAS 581-47-5)
- 2,2＇-Bipyridyl (CAS 366-18-7)
- (2,2'-Bipyridyl)dichlorocopper(II) (CAS 22393-36-8)
- Bis(2,2'-bipyridyl)( [2,2'-bipyridine]-4,4'-diamine)ruthenium(II) dichloride (CAS 114456-23-4)
- Bis(2,2'-bipyridyl)(4-methyl-4’-carboxypropyl-2,2'-bipyridyl) ruthenium(II) bishexafluorophosphate (CAS 115239-59-3)
- 4,4′-bipyridyl hydrate (CAS 123333-55-1)
- (2,2'-Bipyridyl)bis[2-(4-tertbutylphenyl) pyridine] iridium (III) hexafluorophosphate (CAS 1352428-78-4)
Recommended Standards
- Loxoprofen Impurity N11 (CAS 30680-84-3)
- 3-Indolyl-Acetonitrile (CAS 771-51-7)
- Ac-Pro-NH2 (CAS 16395-58-7)
- 2-Naphthaldehyde (CAS 66-99-9)
- 3-Oxo-3,4-dihydropyrido[2,3-b]pyrazine-2-carboxylic acid (CAS 35188-04-6)
- 1-(3,3-Dimethylbut-1-En-2-Yl)-3-Fluorobenzene (CAS 146558-44-3)
- 1-Ethyl-3-methylpyridin-1-ium ethyl sulfate (CAS 872672-50-9)
- (But-2-yn-1-yl)diethylamine (CAS 6323-82-6)
- 2-[(1E,3E)-4-[4-(Dimethylamino)phenyl]buta-1,3-dien-1-yl]-1-methylpyridin-1-ium iodide (CAS 139557-65-6)
- 4-[5-(3-Methoxyphenyl)-1,2,4-oxadiazol-3-yl]pyridine (CAS 331989-56-1)
- 2-(4-Amino-2-methoxyphenoxy)-1-morpholinoethanone (CAS 893764-78-8)
- 5-(((Tert-butoxycarbonyl)amino)methyl)-2-(trifluoromethyl)benzoic acid (CAS 1381846-32-7)
- N,N-dimethyl-3-(thietan-3-ylamino)propanamide (CAS 1860614-67-0)
- [Ser39-OH] Tirzepatide (CAS CATO-C4X-324041)
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