3-Methyl-2-(methylthio)-3H-imidazo[4,5-c]pyridine CAS 7321-99-5
| CAS No. | 7321-99-5 |
| Molecular Formula | C8H9N3S |
| Molecular Weight | 179.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-Methyl-2-(methylthio)-3H-imidazo[4,5-c]pyridine 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-Methyl-2-(methylthio)-3H-imidazo[4,5-c]pyridine (CAS 7321-99-5) is a high-purity analytical reference standard with the molecular formula C8H9N3S and a molecular weight of 179.24 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, sulfur-containing functionality, 3-Methyl-2-(methylthio)-3H-imidazo[4,5-c]pyridine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 179.24 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C8H9N3S |
| Molecular Weight | 179.24 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | 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.) | 1959 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Methyl Standards
- 2-(Methylthio)-1H-benzo[d]imidazol-1-amine (CAS 151693-49-1)
- 1-((Methylthio)methyl)-1H-benzo[d][1,2,3]triazole (CAS 183164-38-7)
- 2-(Methylthio)-1H-benzo[d]imidazol-4-amine (CAS 189045-57-6)
- 1-Methyl-2-(methylthio)-1h-imidazo[4,5-c]pyridine (CAS 7321-95-1)
- 1-Methyl-4-(methylthio)-1H-imidazo[4,5-c]pyridine (CAS 87034-79-5)
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- 3-(Methylthio)indolin-2-one (CAS 40800-64-4)
- 5-(Methylthio)-1H-benzo[d]imidazol-2-amine (CAS 67469-01-6)
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