5-Fluoro-6-methyl-1H-benzo[d]imidazole-2(3H)-thione CAS 106039-71-8
| CAS No. | 106039-71-8 |
| Molecular Formula | C8H7FN2S |
| Molecular Weight | 182.22 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.
5-Fluoro-6-methyl-1H-benzo[d]imidazole-2(3H)-thione (CAS 106039-71-8) is a high-purity analytical reference standard with the molecular formula C8H7FN2S and a molecular weight of 182.22 g/mol.
5-Fluoro-6-methyl-1H-benzo[d]imidazole-2(3H)-thione (C8H7FN2S) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, fluorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C8H7FN2S |
| Molecular Weight | 182.22 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
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