2,2',2'',5'-Tetrabromo-1,1':4',1''-terphenyl CAS 912922-58-8
| CAS No. | 912922-58-8 |
| Molecular Formula | C18H10Br4 |
| Molecular Weight | 545.89 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2,2',2'',5'-Tetrabromo-1,1':4',1''-terphenyl is closely related to bromine substitution, a polycyclic aromatic system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2,2',2'',5'-Tetrabromo-1,1':4',1''-terphenyl (CAS 912922-58-8), molecular formula C18H10Br4 and molecular weight 545.89 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 2,2',2'',5'-Tetrabromo-1,1':4',1''-terphenyl (C18H10Br4) is characterized by bromine substitution, a polycyclic aromatic system. 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 presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2,2',2'',5'-Tetrabromo-1,1':4',1''-terphenyl 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 | C18H10Br4 |
| Molecular Weight | 545.89 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Br-containing |
Related Tetrabromo Standards
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- Phenylethynsulfonic Acid Amide (CAS 64984-31-2)
- 5-[(4-Fluorophenyl)methoxy]-4-oxo-4H-pyran-2-carboxylic acid (CAS 1040348-99-9)
- Nitrefazole (CAS 21721-92-6)
- Tolvaptan Impurity 29 (CAS 331947-69-4)
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- (2-Propoxypyridin-3-yl)boronic acid (CAS 1218790-85-2)
- 1-Methyl-1,2,3,4-tetrahydroquinoline-4-carbaldehyde (CAS 933698-69-2)
- Serpent Peptide (CAS 823202-99-9)
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