4-(4-Bromophenyl)-3a,4,5,9b-tetrahydro-3H-cyclopenta[c]quinoline-8-sulfonamide CAS 360791-49-7
| CAS No. | 360791-49-7 |
| Molecular Formula | C18H17BrN2O2S |
| Molecular Weight | 405.31 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 4-(4-Bromophenyl)-3a,4,5,9b-tetrahydro-3H-cyclopenta[c]quinoline-8-sulfonamide is closely related to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, bromine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
4-(4-Bromophenyl)-3a,4,5,9b-tetrahydro-3H-cyclopenta[c]quinoline-8-sulfonamide (CAS 360791-49-7), molecular formula C18H17BrN2O2S and molecular weight 405.31 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, bromine substitution, 4-(4-Bromophenyl)-3a,4,5,9b-tetrahydro-3H-cyclopenta[c]quinoline-8-sulfonamide is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 405.31 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
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 | C18H17BrN2O2S |
| Molecular Weight | 405.31 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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- 2-((3-(4-Bromophenyl)-4-oxo-3,4-dihydroquinazolin-2-yl)thio)acetohydrazide (CAS 133764-46-2)
- 2-{[4-(4-bromophenyl)-5-(pyridin-4-yl)-4h-1,2,4-triazol-3-yl]sulfanyl}acetohydrazide (CAS 893727-33-8)
- N-(2-Bromophenyl)-2-((3-(2-hydroxyphenyl)-1H-1,2,4-triazol-5-yl)thio)acetamide (CAS 336180-29-1)
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Recommended Standards
- 1,3,5-Tribromo-2-((2-chloroallyl)oxy)benzene (CAS 88486-70-8)
- 4-Bromo-N-(4-(2,5-dimethyl-1H-pyrrol-1-yl)phenyl)benzenesulfonamide (CAS 866156-51-6)
- (2-((4-Bromobenzyl)thio)-4,5-dihydro-1H-imidazol-1-yl)(2-methoxyphenyl)methanone (CAS 851800-44-7)
- 9-(((tert-Butyldimethylsilyl)oxy)methyl)-8-iodo-9H-purin-6-amine (CAS 317382-52-8)
- Angoline (CAS 21080-31-9)
- (Z)-Pralidoxime Chloride (CAS 13698-37-8)
- (1-Bromo-2,2-dimethoxyethyl)benzene (CAS 14371-25-6)
- Lovastatin Impurity 10 (CAS CATO-C4X-168410)
- 5-(2-(4-Chlorophenyl)-2-oxoethylidene)-2-imino-3-phenyloxazolidin-4-one (CAS 122975-86-4)
- Ethyl 2-bromo-5-(methylamino)-1,3-thiazole-4-carboxylate (CAS 1333571-03-1)
- 4-AcO-DET (CAS 1135424-15-5)
- 4-Chloro-6-methoxy-2-methylpyrimidine-5-carbonitrile (CAS 875233-60-6)
- Ethyl 4-Methyl-1,2,3-thiadiazole-5-carboxylate (CAS 18212-20-9)
- Semaglutide impurity 61 (CAS CATO-C4X-222661)
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