Rotigotine Impurity 39 CAS 1268620-73-0
| CAS No. | 1268620-73-0 |
| Molecular Formula | 2*C17H21NOS |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Rotigotine Impurity 39 (CAS 1268620-73-0, C17H21NOSC4H6O6) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Rotigotine Impurity 39 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 437.51 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 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), Rotigotine Impurity 39 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 | 2*C17H21NOS C4H6O6 |
| Molecular Weight | 437.51 g/mol |
| Purity | ≥95% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Rotigotine Standards
- Rotigotine Impurity 11 (CAS 101403-24-1)
- Rotigotine impurity 23 (CAS 101470-23-9)
- Rotigotine EP Impurity B Hydrochloride (CAS 101470-23-9（free base）)
- Rotigotine Racemate HCl (CAS 102120-99-0)
- Rotigotine Impurity 40 (CAS 102121-00-6)
- Rotigotine EP Impurity A (CAS 112835-48-0)
- Rotigotine EP Impurity A HCl (CAS 112835-48-0（free base）)
- Rotigotine EP Impurity H (CAS 1148154-91-9)
Recommended Standards
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- 3-[3-[(tert-butoxycarbonylamino)methyl]cyclohexyl]prop-2-ynoic acid (CAS 2385421-33-8)
- 2-(2,6-Dimethylpiperazin-1-yl)-N,N-dimethylethan-1-amine (CAS 1017120-47-6)
- (2,6-dimethoxy-3-pyridinyl)boronic acid (2,6-dimethoxypyridin-3-yl)boronic acid 221006-70-8 A815922 (CAS 221006-70-8)
- (R)-7,8,9,10-Tetrahydro-5H,6aH-pyrido[1,2-a]quinoxalin-6-one (CAS 1427203-54-0)
- Silodosin-d4 (CAS 1426173-86-5)
- Semaglutide Impurity 7 (CAS CATO-C4X-22267)
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