3-methylthieno[2,3-b]pyridine-2,5-dicarboxylic acid CAS 949984-37-6
| CAS No. | 949984-37-6 |
| Molecular Formula | C10H7NO4S |
| Molecular Weight | 237.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 237.23 g/mol gives 3-methylthieno[2,3-b]pyridine-2,5-dicarboxylic acid distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
3-methylthieno[2,3-b]pyridine-2,5-dicarboxylic acid (CAS 949984-37-6) is a high-purity analytical reference standard with the molecular formula C10H7NO4S and a molecular weight of 237.23 g/mol.
3-methylthieno[2,3-b]pyridine-2,5-dicarboxylic acid (C10H7NO4S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; 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).
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.
Physical & Chemical Properties
| Molecular Formula | C10H7NO4S |
| Molecular Weight | 237.23 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related methylthieno Standards
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Recommended Standards
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