9-(5-Nitropyridin-2-yl)-9H-carbazole CAS 306991-92-4
| CAS No. | 306991-92-4 |
| Molecular Formula | C17H11N3O2 |
| Molecular Weight | 289.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C17H11N3O2, 9-(5-Nitropyridin-2-yl)-9H-carbazole contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 289.29 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
9-(5-Nitropyridin-2-yl)-9H-carbazole (CAS 306991-92-4), molecular formula C17H11N3O2 and molecular weight 289.29 g/mol, is a CATO reference standard with documented purity and traceability.
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.
As a certified reference material (CRM), 9-(5-Nitropyridin-2-yl)-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.
Physical & Chemical Properties
| Molecular Formula | C17H11N3O2 |
| Molecular Weight | 289.29 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 14.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 3 |
Related Nitropyridin Standards
- 7-(6-Nitropyridin-3-yl)-5H-pyrido[4,3-b]indole (CAS 1415379-89-3)
- 2-((5-Nitropyridin-2-yl)thio)benzo[d]thiazole (CAS 146724-09-6)
- 4-((5-Nitropyridin-2-yl)disulfanyl)pentanoic acid (CAS 663598-55-8)
- 2-((3-Nitropyridin-2-yl)amino)ethyl benzoate (CAS 88369-57-7)
- Ethyl 4-((3-nitropyridin-2-yl)amino)benzoate (CAS 78750-62-6)
- 2-(4-(3-Nitropyridin-2-yl)piperazin-1-yl)pyrimidine (CAS 866153-28-8)
- 1-(3-nitropyridin-2-yl)-4-tetrahydro-2H-pyran-4-ylpiperazine (CAS 2108487-21-2)
- 1-(5-Nitropyridin-2-yl)-4-(pyridin-2-yl)piperazine (CAS 400089-00-1)
Recommended Standards
- 9-(4-Nitrophenyl)-9H-pyrido[3,4-b]indole (CAS 219959-85-0)
- Dimethyl 1-(3,5-dimethylphenyl)-1H-1,2,3-triazole-4,5-dicarboxylate (CAS 895645-33-7)
- 8-Morpholino-2,3-dihydro-[1,4]dioxino[2,3-g]quinoxalin-7-ol (CAS 730986-31-9)
- Ethyl 2-(3-(2-acetylhydrazono)-2-oxoindolin-1-yl)acetate (CAS 624726-26-7)
- 4-(4-Bromo-2,5-difluorophenoxy)butanenitrile (CAS 1443337-15-2)
- Methyl 5-Methyl-2-thiazolecarboxylate (CAS 79247-98-6)
- Ethyl 2-([4-fluoro-3-(trifluoromethyl)phenyl]amino)acetate (CAS 2345-05-3)
- (R)-1-(4-fluoro-3-(trifluoromethyl)phenyl)butan-1-amine (CAS 1212895-00-5)
- Terbutaline impurity 122 (CAS 139508-58-0（free base）)
- 8-Bromo-6-fluoro-4,7-dimethylquinoline (CAS 1420794-00-8)
- 4-Chloro-3-fluoro-2-(trifluoromethyl)pyridine (CAS 1227574-82-4)
- 5-(3,5-Dimethoxyphenyl)-1,3,4-oxadiazole-2-thiol (CAS 749902-08-7)
- 5-Aminothiophene-2,4-dicarboxylic acid (CAS 13196-24-2)
- Semaglutide Impurity 16 (CAS CATO-C4X-222616)
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