1,4-Dichloro-7-isoquinolinesulfonyl Chloride CAS 223671-80-5
| CAS No. | 223671-80-5 |
| Molecular Formula | C9H4Cl3NO2S |
| Molecular Weight | 296.56 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 1,4-Dichloro-7-isoquinolinesulfonyl Chloride.
1,4-Dichloro-7-isoquinolinesulfonyl Chloride (CAS 223671-80-5), molecular formula C9H4Cl3NO2S and molecular weight 296.56 g/mol, is a CATO reference standard with documented purity and traceability.
1,4-Dichloro-7-isoquinolinesulfonyl Chloride (C9H4Cl3NO2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C9H4Cl3NO2S |
| Molecular Weight | 296.56 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2020 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
- 1,3-Dichloroisoquinoline-7-sulfonyl chloride (CAS 930396-15-9)
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- N-(2,6-Dimethylphenyl)-2-(6-methyl-3-oxo-5,6,7,8-tetrahydrocinnolin-2(3H)-yl)acetamide (CAS 933238-55-2)
- 4-Fluoro-N-(piperidin-3-ylmethyl)benzenesulfonamide hydrochloride (CAS 1353971-00-2)
- 7-Hydroxypyrazolo[5,1-c]pyrido[4,3-e][1,2,4]-triazin-6(7H)-one (CAS 1211170-88-5)
- Methyl 1-(4-methoxyphenyl)-6-oxo-4-phenoxy-1,6-dihydropyridazine-3-carboxylate (CAS 338395-85-0)
- 2-Chloro-3-methoxybenzenesulfonamide (CAS 1261642-41-4)
- Cholecystokinin, CCK Tetrapeptide (30-33) (CAS 35144-91-3)
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