3-Fluoro-5-(pentafluorosulfur)benzoyl chloride CAS 1240256-92-1
| CAS No. | 1240256-92-1 |
| Molecular Formula | C7H3ClF6OS |
| Molecular Weight | 284.61 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-Fluoro-5-(pentafluorosulfur)benzoyl chloride 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.
3-Fluoro-5-(pentafluorosulfur)benzoyl chloride (CAS 1240256-92-1), molecular formula C7H3ClF6OS and molecular weight 284.61 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 3-Fluoro-5-(pentafluorosulfur)benzoyl chloride (C7H3ClF6OS) contains sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 284.61 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.
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 | C7H3ClF6OS |
| Molecular Weight | 284.61 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F/Cl-containing |
| Sulfur Atoms | 1 |
Related Fluoro Standards
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Recommended Standards
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