Levodropropizine EP Impurity A (Dextrodropropizine) CAS 99291-24-4
| CAS No. | 99291-24-4 |
| Molecular Formula | C13H20N2O2 |
| Molecular Weight | 236.31 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Levodropropizine EP Impurity A (Dextrodropropizine).
As a process- or degradation-related impurity, Levodropropizine EP Impurity A (Dextrodropropizine) (CAS 99291-24-4, C13H20N2O2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Levodropropizine EP Impurity A (Dextrodropropizine) (C13H20N2O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 236.31 g/mol, it falls into the medium-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 Levodropropizine EP Impurity A (Dextrodropropizine) 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 | C13H20N2O2 |
| Molecular Weight | 236.31 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| 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 |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 2 |
Related Levodropropizine Standards
- Levodropropizine (CAS 99291-25-5)
- Levodropropizine Impurity 16 (CAS 201810-02-8)
- Levodropropizine N-Oxide Impurity 3 (CAS 152237-40-6)
- Levodropropizine Impurity 13 (CAS 1095540-43-4)
- Levodropropizine N-Oxide Impurity 4 (CAS 2098198-51-5)
- Levodropropizine EP Impurity B (CAS 92-54-6)
- Levodropropizine Impurity 7 (CAS CATO-C4X-23987)
- Levodropropizine Impurity 6 (CAS CATO-C4X-23986)
Recommended Standards
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- 1-Bromo-4-chloro-2,5-difluorobenzene (CAS 172921-33-4)
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- 2-(4-Chloro-3,5-dimethyl-2-nitrophenoxy)acetamide (CAS 1706458-51-6)
- Semaglutide impurity 80 (CAS CATO-C4X-222680)
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