9-(5-Nitropyridin-2-yl)-9H-carbazole CAS 306991-92-4
Purity 97%+In StockPharmaceutical Standards
| 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
9-(5-Nitropyridin-2-yl)-9H-carbazole (CAS 306991-92-4) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C17H11N3O2. Molecular weight: 289.29 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
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)
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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)
- 4-(4-Bromo-2,5-difluorophenoxy)butanenitrile (CAS 1443337-15-2)
- Methyl 5-Methyl-2-thiazolecarboxylate (CAS 79247-98-6)
- (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)
- Semaglutide Impurity 16 (CAS CATO-C4X-222616)
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