Ethyl 5-bromo-3-methylisothiazole-4-carboxylate CAS 23310-79-4
| CAS No. | 23310-79-4 |
| Molecular Formula | C7H8BrNO2S |
| Molecular Weight | 250.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Ethyl 5-bromo-3-methylisothiazole-4-carboxylate (CAS 23310-79-4) is a high-purity analytical reference standard with the molecular formula C7H8BrNO2S and a molecular weight of 250.11 g/mol.
Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, Ethyl 5-bromo-3-methylisothiazole-4-carboxylate is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 250.11 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
CATO manufactures Ethyl 5-bromo-3-methylisothiazole-4-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 | C7H8BrNO2S |
| Molecular Weight | 250.11 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Ethyl Standards
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Recommended Standards
- Ethyl 5-(bromomethyl)thiazole-2-carboxylate (CAS 960235-24-9)
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- Ethyl 4-bromo-2-methylthiazole-5-carboxylate (CAS 2091043-87-5)
- Methyl 2-(2-Bromo-5-methyl-4-thiazolyl)acetate (CAS 496062-15-8)
- 4-(2-methoxyethyl)piperidine-4-carboxylic acid;hydrochloride (CAS 1375474-00-2)
- 3-Bromo-4-iodoisothiazole (CAS 202287-54-5)
- 1-[4-(2-bromoacetyl)piperidin-1-yl]-2,2,2-trifluoroethan-1-one (CAS 2031268-68-3)
- Ethyl 8-bromo-4-oxo-1,4-dihydroquinoline-5-carboxylate (CAS 2767647-80-1)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
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