4-Hydroxy-3-(thiazol-4-yl)benzoic acid CAS 1387565-75-4
| CAS No. | 1387565-75-4 |
| Molecular Formula | C10H7NO3S |
| Molecular Weight | 221.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Hydroxy-3-(thiazol-4-yl)benzoic acid (C10H7NO3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, 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).
CATO supplies 4-Hydroxy-3-(thiazol-4-yl)benzoic acid (CAS 1387565-75-4), a certified reference material (molecular formula C10H7NO3S, MW 221.23 g/mol) for analytical method development and quality control.
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 | C10H7NO3S |
| Molecular Weight | 221.23 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.) | 1991 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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- (2E)-3-{4-[(2,4-dichlorophenyl)methoxy]phenyl}-N-[(3,4-dimethoxyphenyl)methyl]prop-2-enamide (CAS 477888-84-9)
- 3-(4-Nitrophenyl)isoxazole-5-carbaldehyde (CAS 869496-64-0)
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