1-(3,5-Dichloro-thiophen-2-yl)-ethanone CAS 89281-26-5
| CAS No. | 89281-26-5 |
| Molecular Formula | C6H4Cl2OS |
| Molecular Weight | 195.07 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-(3,5-Dichloro-thiophen-2-yl)-ethanone.
1-(3,5-Dichloro-thiophen-2-yl)-ethanone (CAS 89281-26-5) is a high-purity analytical reference standard with the molecular formula C6H4Cl2OS and a molecular weight of 195.07 g/mol.
1-(3,5-Dichloro-thiophen-2-yl)-ethanone (C6H4Cl2OS) contains sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. Halogen substitution raises its density and boiling point; 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.
As a certified reference material (CRM), 1-(3,5-Dichloro-thiophen-2-yl)-ethanone 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 | C6H4Cl2OS |
| Molecular Weight | 195.07 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Dichloro Standards
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Recommended Standards
- 1-(3,4-Dichlorothiophen-2-yl)ethan-1-one (CAS 57681-58-0)
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- [1,3-Bis(2,4,6-trimethylphenyl)imidazolidin-2-ylidene)-(2-i-propoxy-5-nitrobenzylidene) ruthenium(II) diiodide (CAS 1874264-99-9)
- 2-(2-Chlorophenyl)-4,4,4-trifluorobutanoic acid (CAS 1509806-09-0)
- 1-methyl-2-(pyrrolidin-3-yl)-1H-imidazole (CAS 1423478-59-4)
- 2-Cyano-N-(pyridin-3-yl)acetamide (CAS 219618-13-0)
- Des-[Gly]31-Semaglutide(x TFA Salt) (CAS 873874-39-6(free base))
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