2-(2-Hydroxyphenyl)thiazole-4-carboxylic acid CAS 27501-91-3
| CAS No. | 27501-91-3 |
| Molecular Formula | C10H7NO3S |
| Molecular Weight | 221.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 2-(2-Hydroxyphenyl)thiazole-4-carboxylic acid 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.
CATO supplies 2-(2-Hydroxyphenyl)thiazole-4-carboxylic acid (CAS 27501-91-3), a certified reference material (molecular formula C10H7NO3S, MW 221.23 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 2-(2-Hydroxyphenyl)thiazole-4-carboxylic acid is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 221.23 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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.) | 1964 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Hydroxyphenyl Standards
- 5-[(4-Hydroxyphenyl)methylene]-2,4-thiazolidinedione (CAS 103788-60-9)
- 2-(3-Hydroxyphenyl)thiazole-4-carboxylic Acid (CAS 113334-58-0)
- (5E)-5-[(2-Hydroxyphenyl)methylidene]-1,3-thiazolidine-2,4-dione (CAS 934394-89-5)
- 2-(4-Hydroxyphenyl)thiazole-4-carboxylic Acid (CAS 36705-82-5)
- 6-(4-Hydroxyphenyl)-3-mercapto-1,2,4-triazin-5-ol (CAS 874515-24-9)
- (1S)-2-[(3-Hydroxyphenyl)carbamoyl]cyclopropane-1-carboxylic acid (CAS 1354359-54-8)
- 1-(2-Hydroxyphenyl)-5-oxo-3-pyrrolidinecarboxylic acid (CAS 39629-89-5)
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Recommended Standards
- 2-(1-(3-Fluorophenyl)-1h-1,2,3-triazol-4-yl)propan-2-ol (CAS 924859-06-3)
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- 2-Butyl-5-fluoroisoindoline-1,3-dione (CAS 351992-03-5)
- 1-(2,5-Dihydroxy-1H-pyrrol-3-yl)propane-2-sulfonic acid (CAS 765254-70-4)
- 3-Hydroxymethyl-5-methylisoxazole (CAS 35166-33-7)
- 4-Bromo-2-chloro-3-(methoxymethoxy)pyridine (CAS 1542143-40-7)
- 2-Chloropyridine-4-thiol (CAS 106962-88-3)
- 5,6-Dimethylpyrazine-2-carboxamide (CAS 344326-14-3)
- (R)-1-(2-fluoro-3-(trifluoromethyl)phenyl)-2-methoxyethan-1-amine (CAS 1270081-47-4)
- 2,4-Diamino-6-methoxy-1,3,5-triazine Solution, 1,000 mg/L, 1ml (CAS 2827-45-4)
- 2-(5-(Benzyloxy)-2-methyl-1H-indol-3-yl)acetic acid (CAS 101734-29-6)
- 2-(2,3-Dimethoxyphenyl)-5-methyl-1H-benzo[d]imidazole (CAS 1305744-46-0)
- 4-(6-Hydroxy-2-propylpyrimidin-4-yl)-1-methylpyrrolidin-2-one (CAS 1708208-51-8)
- Glucagon-like peptide 2 (CAS 89750-15-2)
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