5'-Bromo-[1,1':3',1''-terphenyl]-4,4''-dicarbaldehyde CAS 754991-12-3
| CAS No. | 754991-12-3 |
| Molecular Formula | C20H13BrO2 |
| Molecular Weight | 365.22 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.
5'-Bromo-[1,1':3',1''-terphenyl]-4,4''-dicarbaldehyde (CAS 754991-12-3) is a high-purity analytical reference standard with the molecular formula C20H13BrO2 and a molecular weight of 365.22 g/mol.
Structurally, 5'-Bromo-[1,1':3',1''-terphenyl]-4,4''-dicarbaldehyde (C20H13BrO2) contains a steroid core, a hydroxyl group, an ether linkage, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 14.0, corresponding to approximately 14 ring(s) or double-bond equivalent(s). With a molecular weight of 365.22 g/mol, it falls into the moderately-high-molecular-weight range. 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), 5'-Bromo-[1,1':3',1''-terphenyl]-4,4''-dicarbaldehyde 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 | C20H13BrO2 |
| Molecular Weight | 365.22 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, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Halogen Content | Br-containing |
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Recommended Standards
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- 4-(2-(3-Bromophenoxy)ethoxy)-3-ethoxybenzaldehyde (CAS 565196-43-2)
- 1,1'-(2-Hydroxy-4,5-dimethyl-1,3-phenylene)diethanone (CAS 100117-76-8)
- 4-(Propylsulfanyl)butanoic acid (CAS 79313-53-4)
- Methyl 2-(trifluoromethoxy)acetate (CAS 69104-99-0)
- 3-(3-Chloro-5-fluorophenyl)prop-2-yn-1-ol (CAS 215054-57-2)
- 1-(2,2,2-trifluoroethyl)azetidine-3-carboxylic acid (CAS 1339115-53-5)
- 2,2,2-Trifluoro-1-(2,3,4-trifluorophenyl)ethan-1-one (CAS 1092712-15-6)
- [2-(4-Isopropyl-1,3-thiazol-2-yl)ethyl]amine dihydrochloride (CAS 1396759-29-7)
- 2-chloro-5-[5-(3-chlorophenyl)-1,3-oxazol-2-yl]-4-(trifluoromethyl)pyridine (CAS 680213-96-1)
- 2-(2-(2-(Dodecyloxy)ethoxy)ethoxy)acetamide (CAS 36749-80-1)
- Insulin Glargine Metabolite M2 (CAS CATO-CPTD788867)
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