8-Chloroquinoline-5-sulfonamide CAS 1099660-83-9
| CAS No. | 1099660-83-9 |
| Molecular Formula | C9H7ClN2O2S |
| Molecular Weight | 242.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
8-Chloroquinoline-5-sulfonamide (CAS 1099660-83-9), molecular formula C9H7ClN2O2S and molecular weight 242.68 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 8-Chloroquinoline-5-sulfonamide (C9H7ClN2O2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 242.68 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C9H7ClN2O2S |
| Molecular Weight | 242.68 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 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Chloroquinoline Standards
- 2-Chloroquinoline-6-sulfonamide (CAS 1156387-51-7)
- 6-chloroquinoline-3-sulfonamide (CAS 1798707-42-2)
- 5-Chloroquinoline-8-sulfonamide (CAS 299439-20-6)
- 7-Chloroquinoline-8-sulfonamide (CAS 83055-70-3)
- 8-Chloroquinoline-5-sulfonic acid (CAS 129305-09-5)
- 4-Chloroquinoline-3-sulfonic acid (CAS 205985-49-5)
- 4-Chloroquinoline-8-sulfonic acid (CAS 71331-01-6)
- 5-Chloroquinoline-8-sulfonic acid (CAS 90225-09-5)
Recommended Standards
- 5-chloro-4-(1-methyl-1H-pyrazol-5-yl)thiophene-2-carboxylic acid (CAS 1047630-55-6)
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- 1-Hydroxynaphthalene-2-sulfonyl chloride (CAS 102879-07-2)
- 6-Chloronaphthalene-2-sulfonic acid (CAS 102878-14-8)
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