2-Bromo-5'-phenyl-1,1':3',1''-terphenyl CAS 1890136-54-5
| CAS No. | 1890136-54-5 |
| Molecular Formula | C24H17Br |
| Molecular Weight | 385.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C24H17Br, 2-Bromo-5'-phenyl-1,1':3',1''-terphenyl contains bromine substitution, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 385.30 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
2-Bromo-5'-phenyl-1,1':3',1''-terphenyl (CAS 1890136-54-5) is a high-purity analytical reference standard with the molecular formula C24H17Br and a molecular weight of 385.30 g/mol.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C24H17Br |
| Molecular Weight | 385.30 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Halogen Content | Br-containing |
Related Bromo Standards
- 2'-Bromo-5'-phenyl-1,1':3',1''-terphenyl (CAS 10368-73-7)
- 4'''-Bromo-1,1':3',1'':4'',1'''-quaterphenyl (CAS 106766-63-6)
- 4-Bromo-5'-phenyl-1,1':3',1''-terphenyl (CAS 116941-52-7)
- 3-Bromo-5'-phenyl-1,1':3',1''-terphenyl (CAS 1233200-57-1)
- 4-Bromo-1,1':4',1'':4'',1'''-quaterphenyl (CAS 142878-37-3)
- Bromo-PEG4-t-Butyl Ester (CAS 564476-32-0)
- 5'-Bromo-4-(ethylsulfonyl)-2,2'-dimethoxy-1,1'-biphenyl (CAS 1614246-67-1)
- [4-bromo-5-(trifluoromethyl)-2-naphthyl] 2,2-dimethylpropanoate (CAS 2763158-15-0)
Recommended Standards
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- 2-(2-Bromophenyl)-5-((3-methylpiperidin-1-yl)methyl)benzo[d]oxazole (CAS 1706442-39-8)
- 3-(Adamantan-1-yl)-1-(3-bromophenyl)-1H-pyrazole-4-carbaldehyde (CAS 496010-97-0)
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- Methyl (3S,4R)-4-phenylpyrrolidine-3-carboxylate hydrochloride (CAS 2059917-87-0)
- 1-Benzyl-1h-indole-7-carboxylic acid (CAS 1094217-58-9)
- 1-(Pyridin-2-ylmethyl)-1h-pyrazol-4-amine (CAS 1152940-05-0)
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