Ethyl 4-Hydroxy-2-methylthiazole-5-carboxylate CAS 20737-48-8
| CAS No. | 20737-48-8 |
| Molecular Formula | C7H9NO3S |
| Molecular Weight | 187.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 187.22 g/mol gives Ethyl 4-Hydroxy-2-methylthiazole-5-carboxylate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Ethyl 4-Hydroxy-2-methylthiazole-5-carboxylate (CAS 20737-48-8), a certified reference material (molecular formula C7H9NO3S, MW 187.22 g/mol) for analytical method development and quality control.
Ethyl 4-Hydroxy-2-methylthiazole-5-carboxylate (C7H9NO3S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures Ethyl 4-Hydroxy-2-methylthiazole-5-carboxylate under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C7H9NO3S |
| Molecular Weight | 187.22 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
- 3-Hydroxy-2-methyl-6-(methylsulfonyl)pyridine (CAS 1196486-66-4)
- ethyl 4-hydroxy-5-methyl-1,3-thiazole-2-carboxylate (CAS 133833-93-9)
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- 4-Hydroxy-N-methylbenzenesulfonamide (CAS 3077-61-0)
Recommended Standards
- Ethyl 2-hydroxy-4-methyl-1,3-thiazole-5-carboxylate (CAS 40235-78-7)
- Ethyl 5-(hydroxymethyl)thiazole-2-carboxylate (CAS 960235-23-8)
- Ethyl 2-hydrazinylthiazole-4-carboxylate (CAS 67618-34-2)
- Ethyl 5-amino-3-thioxo-2,3-dihydro-1H-pyrazole-4-carboxylate (CAS 392672-02-5)
- 2-Amino-4-ethylphenol (CAS 94109-11-2)
- 4-(4-Nitrophenyl)-1h-pyrazol-5-amine (CAS 92765-89-4)
- 6-Chloro-5-methoxynicotinicacid (CAS 915107-39-0)
- Methyl 2-(2-bromo-4,5-dimethoxyphenyl)acetate (CAS 4697-57-8)
- 1H-Phenothiazin-1-one (CAS 54819-17-9)
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- Terbutaline EP Impurity D (Methylsulfonate) (CAS 94109-61-2(Free Base))
- 1-Benzyl-3-methoxy-piperidin-4-ylamine dihydrochloride (CAS 1263377-94-1)
- 2-Oxo-6-propyl-4-(trifluoromethyl)-1,2-dihydropyridine-3-carbonitrile (CAS 866020-58-8)
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