4-Bromo-3-phenylpyridine CAS 440112-20-9
| CAS No. | 440112-20-9 |
| Molecular Formula | C11H8BrN |
| Molecular Weight | 234.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 234.09 g/mol gives 4-Bromo-3-phenylpyridine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
4-Bromo-3-phenylpyridine (CAS 440112-20-9) is a high-purity analytical reference standard with the molecular formula C11H8BrN and a molecular weight of 234.09 g/mol.
Based on its molecular formula C11H8BrN, 4-Bromo-3-phenylpyridine 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 234.09 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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-Bromo-3-phenylpyridine 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 | C11H8BrN |
| Molecular Weight | 234.09 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 2025 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Bromo Standards
- 2-Bromo-5-phenylpyridine (CAS 107351-82-6)
- 6-Bromo-3,4-dihydronaphthalene-2-carbonitrile (CAS 1092523-00-6)
- 2-bromo-5H-pyrrolo[2,3-b]pyrazine-7-carbaldehyde (CAS 1185428-32-3)
- 6-Bromo-2-vinylquinoline (CAS 1201898-11-4)
- 8-Bromo-2-vinylquinoline (CAS 1208864-37-2)
- 4-Bromo-1-(1-methoxypropan-2-yl)-1h-pyrazol-3-amine (CAS 1339229-90-1)
- 3-Bromo-4-fluorobenzothioamide (CAS 1378860-93-5)
- 3-Bromo-5-fluorobenzothioamide (CAS 1397195-61-7)
Recommended Standards
- 4-Bromo-2-phenylpyridine (CAS 98420-98-5)
- 5-bromo-1H-pyrazolo[3,4-c]pyridine-3-carbaldehyde (CAS 2406255-68-1)
- 4-Bromo-2-fluorobenzothioamide (CAS 883230-66-8)
- 5-Bromo-2-phenylpyridine (CAS 27012-25-5)
- (3-Acetoxy-3,6-dihydro-2H-pyran-2-yl)methyl acetate (CAS 2168884-90-8)
- 2-Amino-6-(difluoromethyl)-3-(trifluoromethyl)isonicotinaldehyde (CAS 1806844-32-5)
- 1-(3-Nitrophenyl)-2-phenylethan-1-one (CAS 55251-37-1)
- Dipterocarpol (CAS 471-69-2)
- 2-Cyano-n-[4-(2,4,5-trimethylphenyl)-1,3-thiazol-2-yl]acetamide (CAS 851169-55-6)
- 3-((1,1-Dioxidothiomorpholino)methyl)-4-fluorobenzonitrile (CAS 1154385-79-1)
- 4H-Pyrazolo[3,4-d]pyrimidin-4-one, 1,5-dihydro-3-[3-(2-propyn-1-ylsulfinyl)-1-propyn-1-yl]- (CAS 2440565-44-4)
- Bifendate Impurity A (CAS 1181519-47-0)
- 4-(Aminomethyl)-3,5-dimethoxyphenol (CAS 130632-98-3)
- Semaglutide Impurity 123 (CAS 71997-93-8)
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