4-Chloro-5-((propylthio)methyl)isoxazol-3(2H)-one CAS 89660-93-5
| CAS No. | 89660-93-5 |
| Molecular Formula | C7H10ClNO2S |
| Molecular Weight | 207.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
CATO supplies 4-Chloro-5-((propylthio)methyl)isoxazol-3(2H)-one (CAS 89660-93-5), a certified reference material (molecular formula C7H10ClNO2S, MW 207.68 g/mol) for analytical method development and quality control.
Structurally, 4-Chloro-5-((propylthio)methyl)isoxazol-3(2H)-one (C7H10ClNO2S) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 3.0, corresponding to approximately 3 ring(s) or double-bond equivalent(s). With a molecular weight of 207.68 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C7H10ClNO2S |
| Molecular Weight | 207.68 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1982 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Chloro Standards
- 4-chloro-5-fluoroquinazolin-2-amine (CAS 1378497-26-7)
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- 3-Chloro-6-methyl-1-benzothiophene-2-carbonitrile (CAS 137997-26-3)
- 3-Chloro-4-methylbenzo[b]thiophene-2-carbonitrile (CAS 337469-40-6)
- 4-Chloro-5-((isopropylthio)methyl)isoxazol-3(2H)-one (CAS 89660-94-6)
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