Isoquinoline-7-sulfonyl chloride CAS 1374652-25-1
| CAS No. | 1374652-25-1 |
| Molecular Formula | C9H6ClNO2S |
| Molecular Weight | 227.67 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Isoquinoline-7-sulfonyl chloride (CAS 1374652-25-1) is a high-purity analytical reference standard with the molecular formula C9H6ClNO2S and a molecular weight of 227.67 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution, Isoquinoline-7-sulfonyl chloride is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 227.67 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C9H6ClNO2S |
| Molecular Weight | 227.67 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.) | 1991 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Isoquinoline Standards
- Isoquinoline-3-sulfonyl chloride (CAS 1426231-94-8)
- Isoquinoline-4-sulfonyl chloride (CAS 347146-79-6)
- Isoquinoline-7,8-dione (CAS 86433-73-0)
- Isoquinoline Impurity 22 (CAS 91344-81-9)
- isoquinoline-6-sulfonyl chloride (CAS 107322-01-0)
- 6-Methyl-isoquinoline-5-sulfonyl chloride (CAS 949109-33-5)
- isoquinoline-6-sulfonyl fluoride (CAS 1934467-56-7)
- Isoquinoline-5-sulfonamide (CAS 109547-31-1)
Recommended Standards
- 4-Chloro-3-methylthieno[3,2-c]pyridine-7-carboxylic acid (CAS 1360953-05-4)
- Methyl 6-chlorobenzo[d]thiazole-2-carboxylate (CAS 1392015-56-3)
- Methyl 7-chlorothieno[2,3-c]pyridine-2-carboxylate (CAS 1360944-38-2)
- Methyl 4-chlorobenzo[d]thiazole-2-carboxylate (CAS 1392015-58-5)
- N-{2-[(4-fluorophenyl)sulfanyl]ethyl}-3-methoxybenzamide (CAS 337920-95-3)
- (Z)-15-Octadecenoic acid, >96% (HPLC) (CAS 13126-43-7)
- (S)-3-((Tert-butoxycarbonyl)amino)-3-(4-nitrophenyl)propanoic acid (CAS 499995-73-2)
- 6-Bromo-2-methylpyrimidin-4-amine (CAS 1161763-15-0)
- 2-Hydrazinyl-1H-benzo[d]imidazole-5-carboxylic acid (CAS 99122-17-5)
- 2-(4-Methoxyphenyl)pyrimidin-4(1H)-one (CAS 88627-13-8)
- 4-Iodo-1-isobutyl-3-methyl-1H-pyrazol-5-amine (CAS 1303443-54-0)
- 2-[3-Chloro-5-(trifluoromethyl)pyridin-2-yl]-N'-[(2E)-3-oxobutan-2-ylidene]acetohydrazide (CAS 400084-53-9)
- 2-Bromo-1-(5-phenylthiophen-2-yl)ethan-1-one (CAS 10531-43-8)
- [y-Glu3]-Semaglutide Impurity 135 (CAS CATO-C4X-2226135)
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