Rotigotine Impurity 34 CAS CATO-C4X-192734
| CAS No. | CATO-C4X-192734 |
| Molecular Formula | C18H23NOS |
| Molecular Weight | 301.45 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Rotigotine Impurity 34 (CAS CATO-C4X-192734) is a certified pharmaceutical impurity reference standard with the molecular formula C18H23NOS and a molecular weight of 301.45 g/mol.
Owing to a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, Rotigotine Impurity 34 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 301.45 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
As a certified reference material (CRM), Rotigotine Impurity 34 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 | C18H23NOS |
| Molecular Weight | 301.45 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Rotigotine Standards
- Rotigotine Impurity 26 (CAS CATO-C4X-192726)
- Rotigotine impurity 19 (CAS CATO-C4X-192719)
- Rotigotine USP RC C-D6 N-nitroso (CAS CATO-C4X-192727)
- Rotigotine (CAS 92206-54-7)
- Rotigotine (CAS 99755-59-6)
- Rotigotine Impurity 40 (CAS 102121-00-6)
- Rotigotine EP Impurity A (CAS 112835-48-0)
- Rotigotine Impurity 30 (CAS CATO-C4X-192730)
Recommended Standards
- Methyl 8-benzylsulfanyl-5,5,6,7,7-pentadeuterio-6-hydroxyoctanoate (CAS 1346598-50-2)
- Meropenem Impurity 19 (CAS 90776-58-2)
- (5-Chloro-6-(2-(trifluoromethyl)phenyl)pyridin-3-yl)boronic acid (CAS 2225180-81-2)
- Tert-butyl 4-(2-(thietan-3-ylamino)ethyl)piperazine-1-carboxylate (CAS 1994239-91-6)
- Cholic Acid Impurity 63 (CAS CATO-C4X-116063)
- Rivaroxaban Impurity 83 (CAS 1456733-00-8)
- Orforglipron impurity 121 (CAS 2212021-39-9)
- Atrasentan Impurity 122 (CAS 173864-35-2)
- 1-(3-Chlorophenyl)-5-(trifluoromethyl)-1H-pyrazole-4-carbonitrile (CAS 318497-85-7)
- 1-(4-Chloro-3-fluorophenyl)-3-(2,3-dimethylphenyl)propan-1-one (CAS 898792-92-2)
- 4,6-Dichloro-1-methyl-1H-imidazo[4,5-c]pyridin-7-amine (CAS 805316-72-7)
- (S)-2-(1-Hydroxy-2H-isoindol-2-yl)succinic acid (CAS 650625-14-2)
- 5-Bromo-N-(2-oxoazepan-3-yl)thiophene-2-carboxamide (CAS 1214137-34-4)
- [Nva12]-Tirzepatide (CAS CATO-C4X-324042)
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