4,4'-(Oxybis(4,1-phenylene))dipyridine CAS 133416-11-2
| CAS No. | 133416-11-2 |
| Molecular Formula | C22H16N2O |
| Molecular Weight | 324.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 4,4'-(Oxybis(4,1-phenylene))dipyridine (C22H16N2O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 16.0, corresponding to approximately 16 ring(s) or double-bond equivalent(s). With a molecular weight of 324.38 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO supplies 4,4'-(Oxybis(4,1-phenylene))dipyridine (CAS 133416-11-2), a certified reference material (molecular formula C22H16N2O, MW 324.38 g/mol) for analytical method development and quality control.
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), 4,4'-(Oxybis(4,1-phenylene))dipyridine 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 | C22H16N2O |
| Molecular Weight | 324.38 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 2 |
Related Oxybis Standards
- 1,1'-(Oxybis(4,1-phenylene))bis(2-chloroethan-1-one) (CAS 3030-53-3)
- 2,2'-(Oxybis(methylene))bis(4-methylquinazoline) (CAS 2387695-89-6)
- 4,4'-(Oxybis(methylene))bis(1,2-dimethoxybenzene) (CAS 23702-54-7)
- (Oxybis(4,1-phenylene))bis(trimethylsilane) (CAS 18055-71-5)
- (Oxybis(2,1-phenylene))bis(trimethylsilane) (CAS 18055-73-7)
- 4,4'-(Oxybis(methylene))bis((trifluoromethyl)benzene) (CAS 162404-64-0)
- 6,6'-Oxybis(benzo[d]thiazol-2-amine) (CAS 53357-06-5)
- 4,4'-Oxybis(N-hydroxy-3-methylbenzimidamide) (CAS 89446-97-9)
Recommended Standards
- SP 141 (CAS 1253491-42-7)
- 1-(4-Methoxyphenyl)-4-(4-morpholinyl)-1H-indazol-3-amine (CAS 1353505-36-8)
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- (6-Amino-2-methylpyrimidin-4-yl)-N-(tert-butoxycarbonyl)carbamic acid tert-butyl ester (CAS 1364663-30-8)
- 7-Fluoro-[1,2,4]triazolo[1,5-a]pyridine (CAS 1427361-30-5)
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- 1-(3,4-Bis(benzyloxy)phenyl)butan-1-one (CAS 24538-59-8)
- 4-Fluoroindole-6-carboxylic Acid (CAS 885520-31-0)
- 4-((4-(1H-Benzo[d]imidazol-2-yl)piperidin-1-yl)sulfonyl)aniline (CAS 951921-21-4)
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