5-((Methylthio)methyl)isoxazole-3-carboxylic acid CAS 84654-30-8
| CAS No. | 84654-30-8 |
| Molecular Formula | C6H7NO3S |
| Molecular Weight | 173.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 5-((Methylthio)methyl)isoxazole-3-carboxylic acid is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 173.19 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
5-((Methylthio)methyl)isoxazole-3-carboxylic acid (CAS 84654-30-8) is a high-purity analytical reference standard with the molecular formula C6H7NO3S and a molecular weight of 173.19 g/mol.
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.
CATO manufactures 5-((Methylthio)methyl)isoxazole-3-carboxylic acid 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 | C6H7NO3S |
| Molecular Weight | 173.19 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.) | 1981 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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- 2-Butenedioic acid (2E)-, polymer with ethene, 1,4-hexadiene and 1-propene (CAS 61615-63-2)
- 1-[3-(piperidin-1-ylmethyl)phenyl]methanamine,2HCl (CAS 1431965-80-8)
- 5-Methyl-1,3-dioxolane-2,4-dione (CAS 17578-13-1)
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Why CATO?
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