3-Bromo-5-(pentafluorothio)aniline CAS 1240257-95-7
| CAS No. | 1240257-95-7 |
| Molecular Formula | C6H5BrF5NS |
| Molecular Weight | 298.07 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Bromo-5-(pentafluorothio)aniline (CAS 1240257-95-7) is a high-purity analytical reference standard with the molecular formula C6H5BrF5NS and a molecular weight of 298.07 g/mol.
The molecular framework of 3-Bromo-5-(pentafluorothio)aniline (C6H5BrF5NS) is characterized by a nitrile group, sulfur-containing functionality, fluorine/bromine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C6H5BrF5NS |
| Molecular Weight | 298.07 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 | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | F/Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- Fmoc-3-methyl-D-phenylalanine (CAS 352351-64-5)
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- 4-(2-Ethoxyethoxy)-3-fluoroaniline (CAS 946742-20-7)
- 2-(1H-Pyrazol-1-yl)butanoic acid 3284AF 923526-87-8 C7H10N2O2 (CAS 923526-87-8)
- [Formaldehyde Schiff-base]-Semaglutide Impurity 136 X TFA Salt (CAS CATO-C4X-2226136)
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