4,4''''-Dibromo-5''-(4'-bromo-[1,1'-biphenyl]-4-yl)-1,1':4',1'':3'',1''':4''',1''''-quinquephenyl CAS 685114-64-1
| CAS No. | 685114-64-1 |
| Molecular Formula | C42H27Br3 |
| Molecular Weight | 771.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 4,4''''-Dibromo-5''-(4'-bromo-[1,1'-biphenyl]-4-yl)-1,1':4',1'':3'',1''':4''',1''''-quinquephenyl 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.
CATO supplies 4,4''''-Dibromo-5''-(4'-bromo-[1,1'-biphenyl]-4-yl)-1,1':4',1'':3'',1''':4''',1''''-quinquephenyl (CAS 685114-64-1), a certified reference material (molecular formula C42H27Br3, MW 771.38 g/mol) for analytical method development and quality control.
Owing to bromine substitution, a polycyclic aromatic system, 4,4''''-Dibromo-5''-(4'-bromo-[1,1'-biphenyl]-4-yl)-1,1':4',1'':3'',1''':4''',1''''-quinquephenyl is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 771.38 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C42H27Br3 |
| Molecular Weight | 771.38 g/mol |
| 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) | 28.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Br-containing |
Related Dibromo Standards
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- 1,2-Dibromo-2-methylpropane (CAS 594-34-3)
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Recommended Standards
- IDT8-2CHO (CAS 2206677-82-7)
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- Eldecalcitol Impurity 18 (CAS CATO-C4X-214018)
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- 1,3-Di(1-adamantyl)imidazolinium Tetrafluoroborate (CAS 1176202-63-3)
- 2-(6,10-Dimethylspiro[4.5]dec-6-en-2-yl)propan-2-ol (CAS 1460-73-7)
- 2-[4-(dimethylamino)-2,6-dimethylphenyl]acetic acid hydrochloride (CAS 1909326-09-5)
- 3-hydroxy-5-methylpyridine-2-carboxylic acid hydrobromide (CAS 1461705-76-9)
- N-(2-Aminoethyl)carbamodithioic Acid (CAS 20950-84-9)
- 2-((S)-1-((S)-2-Amino-5-guanidinopentanoyl)pyrrolidine-2-carboxamido)acetic acid (CAS 96817-14-0)
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