5-(2-Aminothiazol-5-ylthio)-2-methoxy-4-methylbenzoic acid CAS 439578-97-9
| CAS No. | 439578-97-9 |
| Molecular Formula | C12H12N2O3S2 |
| Molecular Weight | 296.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 5-(2-Aminothiazol-5-ylthio)-2-methoxy-4-methylbenzoic acid (CAS 439578-97-9), a certified reference material (molecular formula C12H12N2O3S2, MW 296.37 g/mol) for analytical method development and quality control.
5-(2-Aminothiazol-5-ylthio)-2-methoxy-4-methylbenzoic acid (C12H12N2O3S2) 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 presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C12H12N2O3S2 |
| Molecular Weight | 296.37 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| 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.) | 2025 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Aminothiazol Standards
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Recommended Standards
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