1-(2,5-Dichlorophenyl)-2-(isopropylthio)ethan-1-one CAS 1178152-56-1
| CAS No. | 1178152-56-1 |
| Molecular Formula | C11H12Cl2OS |
| Molecular Weight | 263.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
1-(2,5-Dichlorophenyl)-2-(isopropylthio)ethan-1-one (CAS 1178152-56-1) is a high-purity analytical reference standard with the molecular formula C11H12Cl2OS and a molecular weight of 263.18 g/mol.
Structurally, 1-(2,5-Dichlorophenyl)-2-(isopropylthio)ethan-1-one (C11H12Cl2OS) contains sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 263.18 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
As a certified reference material (CRM), 1-(2,5-Dichlorophenyl)-2-(isopropylthio)ethan-1-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 | C11H12Cl2OS |
| Molecular Weight | 263.18 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| 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.) | 1989 |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Dichlorophenyl Standards
- 5-((2,5-Dichlorophenyl)thio)pentan-2-one (CAS 1153114-94-3)
- 1-(2,5-Dichlorophenyl)-2-(propylthio)ethan-1-one (CAS 1157207-36-7)
- 1-(3,4-Dichlorophenyl)-2-(propylthio)ethan-1-one (CAS 1157362-87-2)
- 1-(2,4-Dichlorophenyl)-2-(propylthio)ethan-1-one (CAS 1157364-17-4)
- 1-(2,4-Dichlorophenyl)-2-(isopropylthio)ethan-1-one (CAS 1183561-05-8)
- 4-((2,5-Dichlorophenyl)thio)pentan-2-one (CAS 1341522-46-0)
- 1-((2,5-Dichlorophenyl)thio)-3-methylbutan-2-one (CAS 1472757-49-5)
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