Risdiplam Impurity 1 CAS CATO-C4X-30121
| CAS No. | CATO-C4X-30121 |
| Molecular Formula | C23H23N7O2 |
| Molecular Weight | 429.47 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Risdiplam Impurity 1 is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
As a process- or degradation-related impurity, Risdiplam Impurity 1 (CAS CATO-C4X-30121, C23H23N7O2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Risdiplam Impurity 1 (C23H23N7O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 16.0, corresponding to approximately 16 ring(s) or double-bond equivalent(s). With a molecular weight of 429.47 g/mol, it falls into the moderately-high-molecular-weight range. 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.
CATO manufactures Risdiplam Impurity 1 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 | C23H23N7O2 |
| Molecular Weight | 429.47 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store in a cool place (≤25°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 |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 7 |
Related Risdiplam Standards
- Risdiplam impurity 5 (CAS CATO-C4X-30125)
- Risdiplam impurity 7 (CAS CATO-C4X-30127)
- Risdiplam Impurity 8 (CAS 2250441-24-6)
- Risdiplam Impurity 3 (CAS CATO-C4X-30123)
- Risdiplam Impurity 4 (CAS CATO-C4X-30124)
- Risdiplam (CAS 1825352-65-5)
- Risdiplam Impurity 9 (CAS CATO-C4X-30129)
- Risdiplam impurity 11 (CAS CATO-C4X-301211)
Recommended Standards
- Finerenone Impurity 47 (CAS 1050477-58-1)
- Intermediate material 100067 (CAS CATO-CIM-100067)
- Finerenone Impurity 121 (CAS CATO-C4X-2880121)
- 5-Methoxy-3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1-(triisopropylsilyl)-1H-indole (CAS 1278579-44-4)
- Bilastine Impurity 8 Oxalate (CAS 1181267-38-8(Free Base))
- Tenofovir disoproxil Impurity 14 (CAS 1244022-56-7(Free Base))
- Phenylbutyrate Impurity 6 (CAS 1292210-87-7)
- 4-Bromo-6-ethyl-2-methylquinoline (CAS 1070879-44-5)
- 4-(2-Methoxyethyl)phenyl 3-piperidinyl ether (CAS 946681-36-3)
- 3,5-Difluoro-2-(trifluoromethoxy)benzonitrile (CAS 1803828-45-6)
- 1H-Pyrrolo[3,2-c]pyridine-6-carboxylic acid (CAS 1082040-99-0)
- 3-(4-Hydroxybutyl)-2-thioxo-2,3-dihydroquinazolin-4(1H)-one (CAS 138892-94-1)
- n-Butyl-1,1,2,2,3,3-d6 Alcohol (CAS 1219794-84-9)
- PACAP-Related Peptide (PRP), rat (CAS 132769-35-8)
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