Ethyl 5-(ethylsulfonyl)isoxazole-3-carboxylate CAS 1707667-67-1
| CAS No. | 1707667-67-1 |
| Molecular Formula | C8H11NO5S |
| Molecular Weight | 233.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Ethyl 5-(ethylsulfonyl)isoxazole-3-carboxylate.
Ethyl 5-(ethylsulfonyl)isoxazole-3-carboxylate (CAS 1707667-67-1), molecular formula C8H11NO5S and molecular weight 233.24 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, Ethyl 5-(ethylsulfonyl)isoxazole-3-carboxylate (C8H11NO5S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 233.24 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 5-(ethylsulfonyl)isoxazole-3-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 | C8H11NO5S |
| Molecular Weight | 233.24 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- 2,7-Dinitrophenanthrene-9,10-dione (CAS 604-94-4)
- 4,4,4-Trifluoro-3-oxobutanal (CAS 70817-53-7)
- (R)-2,2,2-Trifluoro-1-mesitylethan-1-amine (CAS 1213967-52-2)
- Ethyl 2-(2,4,6-trichloropyrimidin-5-yl)acetate (CAS 889944-72-3)
- 5-chloro-4-(hydroxymethyl)furan-2-carboxylic acid (CAS 1556248-32-8)
- Flumazenil (CAS 78755-81-4)
- (Z)-N-(4-Chlorophenyl)-N,N'-dimethyl-3-(trifluoromethyl)benzene-1-carboximidamide (CAS 400076-74-6)
- Tirzepatide Impurity 57 (CAS CATO-C4X-324057)
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