1,3-Dichloro-5,6-dihydro-4H-cyclopenta[c]thiophen-4-one CAS 7687-79-8
| CAS No. | 7687-79-8 |
| Molecular Formula | C7H4Cl2OS |
| Molecular Weight | 207.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C7H4Cl2OS, 1,3-Dichloro-5,6-dihydro-4H-cyclopenta[c]thiophen-4-one contains sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 207.08 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.
1,3-Dichloro-5,6-dihydro-4H-cyclopenta[c]thiophen-4-one (CAS 7687-79-8) is a high-purity analytical reference standard with the molecular formula C7H4Cl2OS and a molecular weight of 207.08 g/mol.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 1,3-Dichloro-5,6-dihydro-4H-cyclopenta[c]thiophen-4-one 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 | C7H4Cl2OS |
| Molecular Weight | 207.08 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1959 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Dichloro Standards
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Recommended Standards
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- (E)-5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)pent-4-enenitrile (CAS 852603-88-4)
- 1-Methylpyrrole-2-boronic Acid Pinacol Ester (CAS 850567-47-4)
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- N-(4-methoxyphenyl)-1-phenylcyclopentane-1-carboxamide (CAS 332392-06-0)
- N-(2,5-Dimethoxyphenyl)-2-(2,6-dimethyl-3,5-dioxothiomorpholino)acetamide (CAS 868215-55-8)
- 2-(3-Ethoxy-4-fluorophenyl)cyclopropane-1-carboxylic acid (CAS 2166635-16-9)
- 4-Bromo-2,3,6-trimethylphenol (CAS 51857-41-1)
- 2-Chloro-5-ethylphenylboronic Acid (CAS 1418023-51-4)
- 2-(3-Methoxyphenoxy)-4-phenylpyridine-3-carbonitrile (CAS 478245-89-5)
- Liraglutide (13-21) TFA Salt (CAS CATO-C4X-19928)
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