2,6-Diamino-4-(2-fluorophenyl)-4H-thiopyran-3,5-dicarbonitrile CAS 208254-22-2
| CAS No. | 208254-22-2 |
| Molecular Formula | C13H9FN4S |
| Molecular Weight | 272.30 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
2,6-Diamino-4-(2-fluorophenyl)-4H-thiopyran-3,5-dicarbonitrile (CAS 208254-22-2) is a high-purity analytical reference standard with the molecular formula C13H9FN4S and a molecular weight of 272.30 g/mol.
2,6-Diamino-4-(2-fluorophenyl)-4H-thiopyran-3,5-dicarbonitrile (C13H9FN4S) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, fluorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; 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).
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 | C13H9FN4S |
| Molecular Weight | 272.30 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2016 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Diamino Standards
- 2,6-Diamino-4-(4-fluorophenyl)-4H-thiopyran-3,5-dicarbonitrile (CAS 125240-16-6)
- 3,3'-Diamino-[1,1'-biphenyl]-4,4'-dicarboxylic acid (CAS 1799740-97-8)
- 2,2'-Diamino-[1,1'-biphenyl]-4,4'-dicarboxylic acid (CAS 41738-56-1)
- 4,4'-Diamino-[1,1'-biphenyl]-3,3'-dicarboxylic acid (CAS 2130-56-5)
- 1,4-Diamino-2-chloroanthraquinone (CAS 54841-24-6)
- 1,5-Diamino-2-chloroanthracene-9,10-dione (CAS 6313-43-5)
- 1,5-Diamino-4-chloroanthracene-9,10-dione (CAS 86965-31-3)
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