(S,E)-2-methyl-N-(3-methylbutylidene)propane-2-sulfinamide CAS 948843-33-2
| CAS No. | 948843-33-2 |
| Molecular Formula | C9H19NOS |
| Molecular Weight | 189.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 189.32 g/mol gives (S,E)-2-methyl-N-(3-methylbutylidene)propane-2-sulfinamide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies (S,E)-2-methyl-N-(3-methylbutylidene)propane-2-sulfinamide (CAS 948843-33-2), a certified reference material (molecular formula C9H19NOS, MW 189.32 g/mol) for analytical method development and quality control.
The molecular framework of (S,E)-2-methyl-N-(3-methylbutylidene)propane-2-sulfinamide (C9H19NOS) is characterized by an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
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.
Physical & Chemical Properties
| Molecular Formula | C9H19NOS |
| Molecular Weight | 189.32 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 1.0 |
| CAS Registry Year (est.) | 1987 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Recommended Standards
- (S,E)-2-Methyl-N-(3-methylbutan-2-ylidene)propane-2-sulfinamide (CAS 910909-98-7)
- 1-(3-(Dimethylamino)propyl)-3-ethylthiourea (CAS 35542-99-5)
- N-(5-methoxypentyl)thietan-3-amine (CAS 1866140-71-7)
- 2-(4-(2-Aminoethyl)piperazin-1-yl)ethanethiol (CAS 464894-56-2)
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- Semaglutide impurity 95 (CAS CATO-C4X-222695)
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