2,7-Dibromo-9-hexyl-9H-carbazole CAS 654676-12-7
| CAS No. | 654676-12-7 |
| Molecular Formula | C18H19Br2N |
| Molecular Weight | 409.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 409.16 g/mol gives 2,7-Dibromo-9-hexyl-9H-carbazole distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2,7-Dibromo-9-hexyl-9H-carbazole (CAS 654676-12-7) is a high-purity analytical reference standard with the molecular formula C18H19Br2N and a molecular weight of 409.16 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, bromine substitution, 2,7-Dibromo-9-hexyl-9H-carbazole is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 409.16 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
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 | C18H19Br2N |
| Molecular Weight | 409.16 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.) | 1985 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
Related Dibromo Standards
- 3,6-Dibromo-9-hexyl-9H-carbazole (CAS 150623-72-6)
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Recommended Standards
- Methyl (2Z)-3-[(4-chloro-2-fluorophenyl)amino]-2-[3-chloro-5-(trifluoromethyl)pyridin-2-yl]prop-2-enoate (CAS 478033-79-3)
- ((2R,3R,4R,5R)-3-Acetoxy-5-(5-bromo-2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)-4-fluorotetrahydrofuran-2-yl)methyl acetate (CAS 1188522-91-9)
- Ethyl 2-(2,4-difluoro-5-iodobenzoyl)-3-(dimethylamino)acrylate (CAS 1131640-51-1)
- Perfluorophenyl 5-bromothiophene-2-sulfonate (CAS 885949-67-7)
- 4-Ethoxy-3-phenyl-1,2,5-oxadiazole 2-oxide (CAS 178430-92-7)
- 5-Bromo-2-(2-nitro-4-(trifluoromethyl)phenoxy)benzaldehyde (CAS 525569-71-5)
- 3-Bromo-6-chloroimidazo[1,2-b]pyridazin-8-amine (CAS 2170373-43-8)
- (S)-7-(tert-butyl)-1,2,3,4-tetrahydronaphthalen-1-ol (CAS 1568240-63-0)
- 2,4,8,10-Tetramethoxy-5,6,11,12-tetrahydro-5,11-epoxydibenzo[a,e][8]annulene-3,9-diol (CAS 1379610-45-3)
- 4-(Furan-2-ylformamido)butanoic acid (CAS 92799-09-2)
- 2-(2-(3-(2-Methoxyethyl)-1,2,4-oxadiazol-5-yl)ethyl)isoindoline-1,3-dione (CAS 2034328-02-2)
- 4-Chloro-2-cyclopropylquinazoline (CAS 898044-61-6)
- (R)-3,4-dihydro-2H-pyrano[2,3-b]pyridin-4-ol (CAS 1932107-75-9)
- Semaglutide Impurity 144 (CAS 394210-59-4)
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