9-(4-Bromo-2-chlorophenyl)-9H-carbazole CAS 1638533-93-3
| CAS No. | 1638533-93-3 |
| Molecular Formula | C18H11BrClN |
| Molecular Weight | 356.64 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 9-(4-Bromo-2-chlorophenyl)-9H-carbazole 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 9-(4-Bromo-2-chlorophenyl)-9H-carbazole (CAS 1638533-93-3), a certified reference material (molecular formula C18H11BrClN, MW 356.64 g/mol) for analytical method development and quality control.
Structurally, 9-(4-Bromo-2-chlorophenyl)-9H-carbazole (C18H11BrClN) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine/bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 356.64 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.
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 | C18H11BrClN |
| Molecular Weight | 356.64 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| 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.) | 1993 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 1 |
Related Bromo Standards
- 9-(2-Bromo-5-chlorophenyl)-9H-carbazole (CAS 1361956-35-5)
- 9-(3-Bromo-5-chlorophenyl)-9H-carbazole (CAS 1638533-94-4)
- 9-(2-Bromo-4-chlorophenyl)-9H-carbazole (CAS 1838683-77-4)
- {2-bromo-4-[(2-chlorophenyl)methoxy]-5-methoxyphenyl}methanamine (CAS 937598-86-2)
- 9-(2-Bromo-3-chlorophenyl)-9H-carbazole (CAS 2126841-70-9)
- 6-Bromo-2-chloro-5-methyl-8-(1-methylcyclopentyl)pyrido[2,3-d]pyrimidin-7(8H)-one (CAS 1956322-12-5)
- N-(5-bromo-2-chloropyridin-3-yl)morpholine-4-sulfonamide (CAS 1162680-93-4)
- 6'-Bromo-8'-chloro-1',5'-dioxo-1',5'-dihydro-2'H-spiro[cyclohexane-1,3'-imidazo[1,5-a]pyridine]-4-carbonitrile (CAS 1849593-46-9)
Recommended Standards
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- Desonide Impurity 13 (CAS 5016-80-8)
- Semaglutide impurity 86 (CAS CATO-C4X-152686)
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