Rotigotine EP Impurity C CAS 153409-14-4
| CAS No. | 153409-14-4 |
| Molecular Formula | C16H19NOS |
| Molecular Weight | 273.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Rotigotine EP Impurity C (CAS 153409-14-4) is a certified pharmaceutical impurity reference standard with the molecular formula C16H19NOS and a molecular weight of 273.39 g/mol.
Structurally, Rotigotine EP Impurity C (C16H19NOS) contains a nitrogen-containing heterocyclic scaffold, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 273.39 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C16H19NOS |
| Molecular Weight | 273.39 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 |
| CAS Registry Year (est.) | 2000 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Rotigotine Standards
- Rotigotine Impurity 5 (CAS 136247-07-9)
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Recommended Standards
- Tert-butyl 4-hydroxy-2-thia-8-azaspiro[4.5]Decane-8-carboxylate (CAS 2172654-92-9)
- ethyl (9Z,11Z,13Z)-hexadeca-9,11,13,15-tetraenoate (CAS CATO-C4X-289046)
- tert-Butyl 4-((acetylthio)methyl)piperidine-1-carboxylate (CAS 718610-84-5)
- 5-{[2,2'-Bithiophen]-5-yl}thiophene-2-carbonitrile (CAS 110230-97-2)
- Ozenoxacin Impurity 36 (CAS CATO-C4X-279636)
- Phenytoin Impurity N15 (CAS 2784-27-2)
- Prednisone EP Impurity J (CAS 78261-67-3)
- 3-Bromo-N-(2-(3,5-dimethyl-1H-pyrazol-1-yl)propyl)benzamide (CAS 890604-34-9)
- 5-Bromo-2-deoxycytidine (CAS 1022-79-3)
- 6-Chloro-2-(2,5-dimethylthien-3-yl)quinoline-4-carboxylic acid (CAS 847503-13-3)
- Orforglipron Impurity 112 (CAS CATO-C4X-3234112)
- 2-Cyclohexanonecarboxylic acid ethyl ester (CAS 1655-07-8)
- 3-(2,2-Difluoroethoxy)propanenitrile (CAS 1309602-19-4)
- D-[Val]10-Semaglutide (CAS CATO-CPTD788630)
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