6-Chlorobenzo[d]isothiazole CAS 89583-89-1
| CAS No. | 89583-89-1 |
| Molecular Formula | C7H4ClNS |
| Molecular Weight | 169.63 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C7H4ClNS, 6-Chlorobenzo[d]isothiazole contains a nitrile group, sulfur-containing functionality, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 169.63 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).
6-Chlorobenzo[d]isothiazole (CAS 89583-89-1) is a high-purity analytical reference standard with the molecular formula C7H4ClNS and a molecular weight of 169.63 g/mol.
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.
As a certified reference material (CRM), 6-Chlorobenzo[d]isothiazole 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 | C7H4ClNS |
| Molecular Weight | 169.63 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 |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chlorobenzo Standards
- 3-Chlorobenzo[c]isothiazole (CAS 34231-96-4)
- 4-Chlorobenzo[d]isothiazole (CAS 25380-61-4)
- 5-Chlorobenzo[c]isothiazole (CAS 20712-05-4)
- 5-Chlorobenzo[d]isothiazole (CAS 41918-07-4)
- 6-Chlorobenzo[d]thiazole (CAS 2942-10-1)
- 7-Chlorobenzo[d]isothiazole (CAS 89583-90-4)
- 7-Chlorobenzo[d]thiazole (CAS 2942-09-8)
- 3-Chlorobenzo[d]isoxazol-7-ol (CAS 155645-24-2)
Recommended Standards
- 5-Chlorothieno[2,3-b]pyridine (CAS 21344-25-2)
- 5-Chlorobenzothiazole (CAS 2786-51-8)
- 6-Chlorothieno[2,3-b]pyridine (CAS 62226-18-0)
- 5-Chloro-2-sulfanylbenzonitrile (CAS 38244-31-4)
- N-Chloro-2,2,6,6-tetramethyl-4-piperidyl Methacrylate (CAS 1126272-77-2)
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