Zolmitriptan EP Impurity I CAS 659738-69-9
| CAS No. | 659738-69-9 |
| Molecular Formula | C17H21N3O4 |
| Molecular Weight | 331.37 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 331.37 g/mol gives Zolmitriptan EP Impurity I distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
As a process- or degradation-related impurity, Zolmitriptan EP Impurity I (CAS 659738-69-9, C17H21N3O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Zolmitriptan EP Impurity I (C17H21N3O4) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 9.0, corresponding to approximately 9 ring(s) or double-bond equivalent(s). With a molecular weight of 331.37 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 Zolmitriptan EP Impurity I 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 | C17H21N3O4 |
| Molecular Weight | 331.37 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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 |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 3 |
Related Zolmitriptan Standards
- Zolmitriptan Impurity 35 (Mixture of Diastereomers) (CAS CATO-C4X-135135)
- Zolmitriptan Impurity 44 (CAS CATO-C4X-135144)
- Zolmitriptan EP Impurity B (CAS 251451-30-6)
- Zolmitriptan USP Related Compound D (CAS 191864-24-1)
- Zolmitriptan Impurity 24 (CAS CATO-C4X-135124)
- Zolmitriptan Impurity N1 (CAS 1346599-24-3)
- Zolmitriptan-d6 (CAS 1217644-84-2)
- Zolmitriptan (CAS 139264-17-8)
Recommended Standards
- Anastrozole Diacid (CAS 1338800-81-9)
- Ropivacaine Impurity 10 (CAS CATO-C4X-175310)
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- Ropivacaine Impurity 11 (CAS CATO-C4X-175311)
- Piracetam impurity 31 (CAS CATO-C4X-123531)
- Linagliptin Impurity 70 (CAS 2253964-98-4)
- Roxadustat Impurity 107 (CAS CATO-C4X-2213107)
- 1-(2-Hydrazineylethyl)-4-methylpiperazine (CAS 13562-46-4)
- Methyl 3-Aminoquinoline-6-carboxylate (CAS 1780509-06-9)
- 2-(2-Fluoroacetyl)-3-hydroxy-4,4,6-trimethylcyclohexa-2,5-dienone (CAS 474942-44-4)
- 2,2-Dimethyl-3-(o-tolyl)propan-1-ol (CAS 861077-46-5)
- 1,3-Difluoro-2,4-diiodo-benzene (CAS 1208074-68-3)
- BD 1047 Dihydrobromide, 98% (CAS 138356-21-5)
- Semaglutide impurity 193 (CAS CATO-C4X-2226193)
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