5-Chloroquinoline-8-sulfonyl Chloride CAS 21121-54-0
| CAS No. | 21121-54-0 |
| Molecular Formula | C9H5Cl2NO2S |
| Molecular Weight | N/A |
| 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.
CATO supplies 5-Chloroquinoline-8-sulfonyl Chloride (CAS 21121-54-0), a certified reference material (molecular formula C9H5Cl2NO2SHCl, MW 298.56 g/mol) for analytical method development and quality control.
Based on its molecular formula C9H5Cl2NO2SHCl, 5-Chloroquinoline-8-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 298.56 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a certified reference material (CRM), 5-Chloroquinoline-8-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.
Physical & Chemical Properties
| Molecular Formula | C9H5Cl2NO2S HCl |
| Molecular Weight | 298.56 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chloroquinoline Standards
- 8-Chloroquinoline-2-carboxamide (CAS 1070370-89-6)
- 2-Chloroquinoline-5-carboxylic Acid (CAS 1092287-30-3)
- 2-Chloroquinoline-7-carboxylic acid (CAS 1092287-40-5)
- 2-chloroquinoline-8-carboxylic acid (CAS 1092287-54-1)
- 8-Chloroquinoline-5-sulfonamide (CAS 1099660-83-9)
- 6-Chloroquinoline-3,4-diamine (CAS 110643-78-2)
- 7-Chloroquinoline-3,4-diamine (CAS 110643-79-3)
- 5-Chloroquinoline-3,4-diamine (CAS 110643-88-4)
Recommended Standards
- Tert-butyl (R)-3-amino-3,4-dihydroquinoline-1(2H)-carboxylate (CAS 1187933-31-8)
- (1S,2S)-2-cyano-2-methylcyclopropane-1-carboxylic acid (CAS 2092685-90-8)
- 6-Bromo-2-(difluoromethyl)-3-methylpyridin-4-amine (CAS 1806810-88-7)
- Methyl 3-{[7-(3-fluorophenyl)-4-oxo-3H,4H-thieno[3,2-d]pyrimidin-3-yl]methyl}-4-methoxybenzoate (CAS 1105232-77-6)
- Ethyl 5-(Hydroxymethyl)pyrazole-3-carboxylate (CAS 61453-48-3)
- tert-Butyl 1,2,3-thiadiazol-5-ylcarbamate (CAS 372089-60-6)
- 1-Cyclopentyl-1-(pyridin-3-yl)methanamine (CAS 1178320-32-5)
- 2,2,2-Trichloro-1-[4-(2-fluorobenzoyl)-1H-pyrrol-2-yl]ethan-1-one (CAS 338403-88-6)
- (S)-(-)-Celiprolol-d9 Hydrochloride (CAS 1330266-42-6)
- (Des-Thr?)-Glucagon trifluoroacetate salt (CAS 1802078-27-8)
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