Ropinirole Impurity 16 CAS 91374-25-3
| CAS No. | 91374-25-3 |
| Molecular Formula | C16H24N2O4 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Ropinirole Impurity 16 (C16H24N2O4HCl) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Ropinirole Impurity 16 (CAS 91374-25-3), a pharmacopoeial impurity reference standard (molecular formula C16H24N2O4HCl, MW 344.84 g/mol) used for the identification and quantification of trace impurities in APIs.
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 manufactures Ropinirole Impurity 16 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C16H24N2O4 HCl |
| Molecular Weight | 344.84 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1983 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Ropinirole Standards
- Ropinirole Impurity 10 (CAS 101566-00-1)
- Ropinirole Impurity 24 (CAS 1027600-42-5)
- Ropinirole Impurity 27 (CAS 1027600-42-5 (free base))
- Ropinirole EP Impurity A (CAS 102842-51-3)
- Ropinirole EP Impurity D (CAS 106916-16-9)
- Ropinirole Impurity 3 HCl (CAS 1076199-41-1)
- Ropinirole-D14 (CAS 1132746-05-4)
- Ropinirole Impurity 4 (CAS 120427-93-2)
Recommended Standards
- Ranolazine Impurity 13 (CAS CATO-C4X-102613)
- Molnupiravir Impurity 12 (CAS CATO-C4X-249012)
- Relugolix Impurity 184 (CAS CATO-C4X-2429184)
- (R)-7-Hydroxy-1,4-dioxaspiro[4.5]decan-8-one (CAS 851764-31-3)
- 1-(2-chlorophenyl)-3-methyl-1H-pyrazole-4-carbaldehyde (CAS 1046784-68-2)
- Methyl 1,2,3,4-tetrahydro-1,6-naphthyridine-2-carboxylate hydrochloride (CAS 2137505-57-6)
- Lithium 2,3-difluorobenzenesulfinate (CAS 1233521-04-4)
- 2-(3-Aminopropyl)pyridazin-3(2H)-one (CAS 1105192-02-6)
- N-(4-(3-Methoxypyrrolidin-1-yl)phenyl)cyclopropanecarboxamide (CAS 1797021-35-2)
- Semaglutide impurity 96 (CAS CATO-C4X-222696)
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