(S)-Prothioconazole Impurity N1 CAS 4819-36-7
| CAS No. | 4819-36-7 |
| Molecular Formula | C5H8N4O2 |
| Molecular Weight | 156.15 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, (S)-Prothioconazole Impurity N1 (C5H8N4O2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 156.15 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a process- or degradation-related impurity, (S)-Prothioconazole Impurity N1 (CAS 4819-36-7, C5H8N4O2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
As a certified reference material (CRM), (S)-Prothioconazole Impurity N1 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C5H8N4O2 |
| Molecular Weight | 156.15 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 4 |
Related S Standards
- (R)-Prothioconazole Impurity 9 (CAS 333354-47-5)
- Prothioconazole Impurity 9 DiHCl (CAS 2095409-16-6)
- Prothioconazole Impurity N7 (CAS 134818-67-0)
- Prothioconazole impurity N1 (CAS 708263-86-9)
- Prothioconazole-Desthio (CAS 120983-64-4)
- Prothioconazole Impurity 1 (CAS 856045-88-0)
- Prothioconazole Impurity 2 (CAS 856045-93-7)
- Prothioconazole Impurity 8 (Mixture of Diastereomers) (CAS 856045-95-9)
Recommended Standards
- 3-Hydroxyanthranilic Acid-d3 (CAS 1794970-56-1)
- 2-(6-Fluoro-pyridin-2-ylamino)-ethanol (CAS 1000981-41-8)
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- 5-Fluoro-3-(methoxymethyl)pyridin-2-amine (CAS 1097264-96-4)
- Difenidol Impurity 7 DiHCl (CAS 63114-16-9)
- Dotinurad Impurity 14 (CAS CATO-C4X-249414)
- Tofacitinib Impurity N47 (CAS 52090-68-3)
- (2Z)-7-Fluoro-3-phenyl-2-[(phenylamino)methylidene]-2,3-dihydro-1H-inden-1-one (CAS 339115-65-0)
- N-(2-(piperazin-1-yl)phenyl)acetamide dihydrochloride (CAS 1417635-85-8)
- 2,2-Difluoro-3-hydroxy-3,5-dimethylhexanoic acid (CAS 1248448-97-6)
- 2-(2-Bromo-4-fluorophenoxy)propanoic acid (CAS 1579-73-3)
- 2-(Hydroxymethyl)-4-methyl-pentanoic acid (CAS 76789-47-4)
- 1-(5-Bromobenzofuran-2-yl)-2,2-dimethylpropan-1-one (CAS 1040070-42-5)
- Semaglutide238 (CAS CATO-C4X-2226238)
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