2-Oxo-1,2-dihydrobenzo[cd]indole-6-sulfonyl chloride CAS 78078-92-9
| CAS No. | 78078-92-9 |
| Molecular Formula | C11H6ClNO3S |
| Molecular Weight | 267.69 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-Oxo-1,2-dihydrobenzo[cd]indole-6-sulfonyl chloride 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.
2-Oxo-1,2-dihydrobenzo[cd]indole-6-sulfonyl chloride (CAS 78078-92-9) is a high-purity analytical reference standard with the molecular formula C11H6ClNO3S and a molecular weight of 267.69 g/mol.
Based on its molecular formula C11H6ClNO3S, 2-Oxo-1,2-dihydrobenzo[cd]indole-6-sulfonyl chloride contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 267.69 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C11H6ClNO3S |
| Molecular Weight | 267.69 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1979 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Oxo Standards
- 2-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)imidazo[1,2-a]pyridin-6-amine (CAS 1082409-09-3)
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- 6-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-4-methyl-2-oxo-1,2-dihydropyridine-3-carbonitrile (CAS 925006-83-3)
- 2,3-Dihydrobenzo[b]thiophene-6-sulfonyl chloride 1,1-dioxide (CAS 208643-45-2)
- 2-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-6-methylimidazo[1,2-a]pyridine (CAS 702636-92-8)
- N-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)-4-methylbenzamide (CAS 301306-98-9)
- 2-(2,3-Dihydrobenzo[b][1,4]dioxin-6-yl)benzo[d]thiazole (CAS 796053-10-6)
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Recommended Standards
- 2-Chloro-N-(4-fluoro-3-methoxyphenyl)-5-methylpyrimidin-4-amine (CAS 936092-73-8)
- 5-Chloro-1-(3-fluorophenyl)-N,N-dimethyl-1H-pyrazole-4-carboxamide (CAS 98533-48-3)
- (4-Chloro-3-nitrophenyl)-(2-thienyl)methanone (CAS 31431-18-2)
- 5-Chloro-2-(dimethylamino)-1-(4-fluorophenyl)-1h-imidazole-4-carbaldehyde (CAS 775314-88-0)
- 5-phenyl-4,5-dihydro-1H-pyrazole (CAS 936-47-0)
- 3-{[4-(2,6-difluorobenzoyl)-3-methyl-2-oxo-1,2,3,4-tetrahydroquinoxalin-1-yl]methyl}benzonitrile (CAS 317833-44-6)
- 3-(1H-Tetrazol-5-yl)piperidine (CAS 112626-96-7)
- tert-Butyl 3-amino-4-hydroxypyrrolidine-1-carboxylate (CAS 190141-99-2)
- 1-Cyclobutyl-1h-imidazole-2-carboxylic acid (CAS 1547010-18-3)
- Tert-butyl (S)-5-(2-amino-3-methoxy-3-oxopropyl)-1H-indole-1-carboxylate (CAS 2387561-61-5)
- 3-(2,5-dimethylthiophen-3-yl)propanoic acid (CAS 26421-38-5)
- 1-(3-Methoxybenzyl)-5-methyl-1h-pyrazole-3-carboxylic acid (CAS 1368655-89-3)
- 6-(4-Bromo-2-formylphenoxy)hexanenitrile (CAS 1443310-17-5)
- Semaglutide Impurity 9 (CAS CATO-C4X-22269)
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