Rotigotine EP Impurity G HCl CAS CATO-C4X-192713
| CAS No. | CATO-C4X-192713 |
| Molecular Formula | C22H25NOS2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
CATO supplies Rotigotine EP Impurity G HCl (CAS CATO-C4X-192713), a pharmacopoeial impurity reference standard (molecular formula C22H25NOS2HCl, MW 420.03 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Rotigotine EP Impurity G HCl (C22H25NOS2HCl) contains a steroid core, an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 420.03 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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 | C22H25NOS2 HCl |
| Molecular Weight | 420.03 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 2 |
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
- Valaciclovir EP Impurity R (CAS 142963-59-5)
- Ilaprazole Impurity 52 (CAS CATO-C4X-113052)
- Cefminox Impurity 33 (CAS CATO-C4X-192633)
- N-((Octahydrocyclopenta[b][1,4]oxazin-7-yl)methyl)pyrazine-2-carboxamide (CAS 1422069-74-6)
- 5-Amino-6-(3-(dimethylamino)phenyl)-1-naphthonitrile (CAS 1240642-74-3)
- 4-bromo-6-fluoronicotinic acid (CAS 1269293-70-0)
- Fmoc-alpha-Me-L-Arg(Pbf)-OH (CAS 2124196-74-1)
- 6-[2-(2-chloro-3-pyridyl)ethynyl]-1H-pyrido[2,3-d]pyrimidin-4-one (CAS 2494962-77-3)
- 1-(3-Chlorophenyl)cyclopentanecarboxylic Acid (CAS 143328-21-6)
- Semaglutide238 (CAS CATO-C4X-2226238)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com