Acotiamide Impurity 39 CAS 701197-05-9
| CAS No. | 701197-05-9 |
| Molecular Formula | C18H24N4O5S |
| Molecular Weight | 408.47 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Acotiamide Impurity 39 (CAS 701197-05-9, C18H24N4O5S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C18H24N4O5S, Acotiamide Impurity 39 contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 408.47 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.
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
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 | C18H24N4O5S |
| Molecular Weight | 408.47 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Acotiamide Standards
- Acotiamide Impurity 45 (CAS CATO-C4X-111445)
- Acotiamide Impurity 33 (CAS 788137-01-9)
- Acotiamide Impurity 44 (CAS 738562-93-1)
- Acotiamide Impurity 17 (CAS CATO-C4X-111417)
- Acotiamide Impurity 16 (CAS CATO-C4X-111416)
- Acotiamide Impurity 7 (CAS 185105-13-9)
- Acotiamide Impurity 2 (CAS CATO-C4X-11142)
- Acotiamide (CAS 185106-16-5)
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