5,7-Dichloroquinoline-8-sulfonic acid CAS 28712-89-2
| CAS No. | 28712-89-2 |
| Molecular Formula | C9H5Cl2NO3S |
| Molecular Weight | 278.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 278.11 g/mol gives 5,7-Dichloroquinoline-8-sulfonic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5,7-Dichloroquinoline-8-sulfonic acid (CAS 28712-89-2) is a high-purity analytical reference standard with the molecular formula C9H5Cl2NO3S and a molecular weight of 278.11 g/mol.
Based on its molecular formula C9H5Cl2NO3S, 5,7-Dichloroquinoline-8-sulfonic acid 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 278.11 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 5,7-Dichloroquinoline-8-sulfonic acid under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H5Cl2NO3S |
| Molecular Weight | 278.11 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Dichloroquinoline Standards
- ethyl 4,6-dichloroquinoline-3-carboxylate (CAS 21168-41-2)
- Propyl 3,7-dichloroquinoline-8-carboxylate (CAS 84087-12-7)
- 6,7-Dichloroquinoline-2,3-dicarboxylic acid (CAS 948294-36-8)
- Ethyl 4,7-dichloroquinoline-3-carboxylate (CAS 19499-19-5)
- Ethyl 2,4-dichloroquinoline-3-carboxylate (CAS 6315-94-2)
- ethyl 4,8-dichloroquinoline-3-carboxylate (CAS 56824-91-0)
- 3-Benzyl-2,4-dichloroquinoline (CAS 157027-28-6)
- 4,7-Dichloroquinoline-8-sulfonyl chloride (CAS 1315366-33-6)
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