5-Bromotetracene CAS 23790-75-2
| CAS No. | 23790-75-2 |
| Molecular Formula | C18H11Br |
| Molecular Weight | 307.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 307.18 g/mol gives 5-Bromotetracene distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5-Bromotetracene (CAS 23790-75-2), molecular formula C18H11Br and molecular weight 307.18 g/mol, is a CATO reference standard with documented purity and traceability.
5-Bromotetracene (C18H11Br) contains bromine substitution, a polycyclic aromatic system. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), 5-Bromotetracene 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 | C18H11Br |
| Molecular Weight | 307.18 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Br-containing |
Recommended Standards
- 5-Bromobenzo[c]phenanthrene (CAS 89523-51-3)
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- 4-Bromotetraphene (CAS 61921-39-9)
- 6-(2,6-Dichlorobenzyl)-5,7-dimethyl-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 477890-41-8)
- Methyl 3-(2-cyanopropan-2-yl)-4-methoxybenzoate (CAS 1191944-14-5)
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- 2-Phenyl-4-(3,3,3-trifluoro-2-methylpropylidene)oxazol-5(4H)-one (CAS 81619-00-3)
- 5-(1-Ethyl-5-hydroxy-1H-pyrazole-4-carbonyl)-2-methyl-4-oxazol-2-yl-benzonitrile (CAS 1231635-73-6)
- 1-(4-Bromo-2-fluorophenyl)-1h-1,2,3,4-tetrazole (CAS 530080-21-8)
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