N-(4-chloro-1,1-dioxidotetrahydrothiophen-3-yl)isobutyramide CAS 919740-97-9
| CAS No. | 919740-97-9 |
| Molecular Formula | C8H14ClNO3S |
| Molecular Weight | 239.72 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.
N-(4-chloro-1,1-dioxidotetrahydrothiophen-3-yl)isobutyramide (CAS 919740-97-9) is a high-purity analytical reference standard with the molecular formula C8H14ClNO3S and a molecular weight of 239.72 g/mol.
Based on its molecular formula C8H14ClNO3S, N-(4-chloro-1,1-dioxidotetrahydrothiophen-3-yl)isobutyramide contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic functional-group stretching vibrations in infrared spectroscopy. The molecular weight of 239.72 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C8H14ClNO3S |
| Molecular Weight | 239.72 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 2.0 |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
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Recommended Standards
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- Clomipramine Impurity 3 (CAS 79752-03-7)
- Ethyl 2-(1-methyl-4-phenyl-1H-pyrrol-2-yl)acetate (CAS 87453-33-6)
- 2-Phenylquinoline-3-carbonitrile (CAS 73013-67-9)
- 2-(3-Fluoro-5-(difluoromethyl)benzoyl)pyridine (CAS 1261535-37-8)
- N-((1-Ethyl-5-fluoro-1H-pyrazol-4-yl)methyl)-2-phenylethan-1-amine hydrochloride (CAS 1856066-61-9)
- Pramipexole Impurity 52 (CAS 1254579-15-1)
- N-(5-Amino-4-cyano-1H-imidazol-1-yl)acetamide (CAS 141563-17-9)
- Diheptylamine hydrochloride (CAS 2486-83-1)
- Des-Ala28-Tirzepatide (CAS CATO-CPTD788945)
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