| CAS No. | 691879-66-0 |
| Molecular Formula | C6H5F6N3OS |
| Molecular Weight | 281.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
[(Z)-(1,1,1,5,5,5-Hexafluoro-4-oxopentan-2-ylidene)amino]thiourea (C6H5F6N3OS) contains an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, fluorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
[(Z)-(1,1,1,5,5,5-Hexafluoro-4-oxopentan-2-ylidene)amino]thiourea (CAS 691879-66-0), molecular formula C6H5F6N3OS and molecular weight 281.18 g/mol, is a CATO reference standard with documented purity and traceability.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.
| Molecular Formula | C6H5F6N3OS |
| Molecular Weight | 281.18 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |