2,7-Dibromo-9-octyl-9H-carbazole CAS 726169-75-1
| CAS No. | 726169-75-1 |
| Molecular Formula | C20H23Br2N |
| Molecular Weight | 437.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2,7-Dibromo-9-octyl-9H-carbazole (CAS 726169-75-1), molecular formula C20H23Br2N and molecular weight 437.21 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2,7-Dibromo-9-octyl-9H-carbazole (C20H23Br2N) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 437.21 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
Physical & Chemical Properties
| Molecular Formula | C20H23Br2N |
| Molecular Weight | 437.21 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Dibromo Standards
- 3,6-Dibromo-9-(2-ethylhexyl)-9H-carbazole (CAS 173063-52-0)
- 1,8-Dibromo-3,6-di-tert-butyl-9H-carbazole (CAS 625385-37-7)
- 2,7-Dibromo-9-(2-ethylhexyl)carbazole (CAS 544436-46-6)
- 3,6-Dibromo-9-n-octyl-carbazole (CAS 79554-93-1)
- 2,4-Dibromo-6-[(1E)-({[2-(trifluoromethyl)phenyl]methyl}imino)methyl]phenol (CAS 477848-51-4)
- 2,3-Dibromo-1-(3,4-dichlorophenyl)-3-phenylpropan-1-one (CAS 81394-21-0)
- 4,6-Dibromo-2-(2,4-dichlorophenyl)benzo[d]oxazol-5-amine (CAS 637302-80-8)
- 4,6-Dibromo-2-(3,4-dichlorophenyl)benzo[d]oxazol-5-amine (CAS 637303-13-0)
Recommended Standards
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- N-{[2-(3,4-difluorophenoxy)phenyl]methyl}-4-iodoaniline (CAS 477886-93-4)
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