6,7-Dichlorobenzo[b]thiophene CAS 439083-10-0
| CAS No. | 439083-10-0 |
| Molecular Formula | C8H4Cl2S |
| Molecular Weight | 203.09 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 6,7-Dichlorobenzo[b]thiophene 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.
6,7-Dichlorobenzo[b]thiophene (CAS 439083-10-0) is a high-purity analytical reference standard with the molecular formula C8H4Cl2S and a molecular weight of 203.09 g/mol.
The molecular framework of 6,7-Dichlorobenzo[b]thiophene (C8H4Cl2S) is characterized by sulfur-containing functionality, chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
Physical & Chemical Properties
| Molecular Formula | C8H4Cl2S |
| Molecular Weight | 203.09 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.) | 2025 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Dichlorobenzo Standards
- 1,3-Dichlorobenzo[c]thiophene (CAS 136132-54-2)
- 3,6-Dichlorobenzo[b]thiophene (CAS 21211-21-2)
- 4,7-Dichlorobenzo[b]thiophene (CAS 318463-07-9)
- 5,7-Dichlorobenzo[d]isoxazol-3-amine (CAS 16263-60-8)
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Recommended Standards
- 3,4-Difluoro-5-nitrobenzoic acid (CAS 1121583-51-4)
- 3,5-Difluoro-4-nitrobenzoic Acid (CAS 1131580-60-3)
- 2,5-Bis(trifluoromethyl)-1H-pyrrole (CAS 220072-95-7)
- (Bromodifluoromethyl)trimethylsilane (CAS 115262-01-6)
- (E)-2-ethyl-4-(2,5,5-trimethylcyclopent-1-en-1-yl)but-2-en-1-ol (CAS 895903-92-1)
- 3-Iodo-1-methyl-1H-thieno[3,2-c]pyrazole (CAS 1426422-17-4)
- 4-Methoxy-5-methylacridin-9(10H)-one (CAS 88377-24-6)
- 1-(2-(Aminomethyl)phenyl)-2,2,2-trifluoroethan-1-amine (CAS 886368-78-1)
- 6-Bromo-8-methyltetrazolo[1,5-a]pyridine (CAS 2763964-74-3)
- 4-((4-(2-Methoxyethyl)-4h-1,2,4-triazol-3-yl)methyl)piperidine (CAS 1507957-10-9)
- Propyl 3,7-dichloroquinoline-8-carboxylate (CAS 84087-12-7)
- 2-(4-oxo-2-sulfanyl-3,4-dihydroquinazolin-3-yl)-3-phenylpropanoic acid (CAS 17785-56-7)
- (7-Fluoro-2,3-dihydrobenzo[b][1,4]dioxin-2-yl)methanol (CAS 107618-09-7)
- Liraglutide Impurity 31 (CAS CATO-C4X-199231)
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