5,8-Dibromo-2,3-bis(5-(2-ethylhexyl)thiophen-2-yl)-6,7-difluoroquinoxaline CAS 1643416-18-5
| CAS No. | 1643416-18-5 |
| Molecular Formula | C32H38Br2F2N2S2 |
| Molecular Weight | 712.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5,8-Dibromo-2,3-bis(5-(2-ethylhexyl)thiophen-2-yl)-6,7-difluoroquinoxaline (CAS 1643416-18-5), molecular formula C32H38Br2F2N2S2 and molecular weight 712.59 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C32H38Br2F2N2S2, 5,8-Dibromo-2,3-bis(5-(2-ethylhexyl)thiophen-2-yl)-6,7-difluoroquinoxaline contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, fluorine/bromine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 712.59 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
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 | C32H38Br2F2N2S2 |
| Molecular Weight | 712.59 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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.) | 1993 |
| Halogen Content | F/Br-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Dibromo Standards
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Recommended Standards
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- Diacerein EP Impurity F (CAS 13928-72-8 (racemic))
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- 3-BROMO-4-CHLOROPYRIDINE 36953-42-1 4-CHLORO-3-BROMOPYRIDINE BC002132 PYRIDINE, 3-BROMO-4-CHLORO- (CAS 36953-42-1)
- 3,5-Dichloro-3,5-dimethoxybenzophenone (CAS 951892-40-3)
- 6-Chloro-2-methyl-3-(trifluoromethyl)pyridine (CAS 1023817-24-4)
- (3-Allyl-4-methoxyphenyl)methanol (CAS 900800-35-3)
- 2,5-Bis(trifluoromethyl)benzyl bromide 2-(2-bromoethyl)-1,4-bis(trifluoromethyl)benzene;2-(bromomethyl)-1,4-bis(trifluoromethyl)benzene 302911-98-4 A22468 (CAS 302911-98-4)
- Methyl 2-(4-chlorophenoxy)-4-fluorobenzoate (CAS 1414959-12-8)
- D-[Ser]8-Semaglutide (CAS CATO-CPTD788632)
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