Zolmitriptan EP Impurity A CAS 139264-24-7
| CAS No. | 139264-24-7 |
| Molecular Formula | C16H21N3O2 |
| Molecular Weight | 287.36 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Zolmitriptan EP Impurity A (CAS 139264-24-7) is a certified pharmaceutical impurity reference standard with the molecular formula C16H21N3O2 and a molecular weight of 287.36 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, Zolmitriptan EP Impurity A is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 287.36 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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 Zolmitriptan EP Impurity A 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 | C16H21N3O2 |
| Molecular Weight | 287.36 g/mol |
| Appearance | Pale yellow to 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1996 |
| Nitrogen Atoms | 3 |
Related Zolmitriptan Standards
- Zolmitriptan (CAS 139264-17-8)
- Zolmitriptan Impurity 31 (CAS CATO-C4X-135131)
- Zolmitriptan Impurity 32 (CAS CATO-C4X-135132)
- Zolmitriptan EP Impurity H (CAS 2518343-21-8)
- Zolmitriptan-d6 (CAS 1217644-84-2)
- Zolmitriptan EP Impurity G-d3 (CAS 1217623-11-4)
- Zolmitriptan Impurity N1 (CAS 1346599-24-3)
- Zolmitriptan Impurity 22 (CAS 251451-31-7)
Recommended Standards
- Tofacitinib Impurity 76 (CAS CATO-C4X-107976)
- Tofacitinib Impurity 75 (CAS CATO-C4X-107975)
- Bifonazole Impurity 7 (CAS 91487-87-5)
- Tofacitinib Impurity 12 (CAS 477600-76-3)
- Coclaurine Impurity 115 (CAS CATO-C4X-275115)
- Urapidil Impurity 104 (CAS CATO-C4X-1924104)
- Mirogabalin Impurity 158 (CAS CATO-C4X-2924158)
- 2-Amino-5-(2-chloropyrimidin-4-yl)benzonitrile (CAS 1292317-50-0)
- N-DesmethylBendamustine (CAS 41515-13-3)
- N-(5-((2-((Furan-2-ylmethyl)amino)-2-oxoethyl)thio)-1,3,4-thiadiazol-2-yl)cyclohexanecarboxamide (CAS 868972-94-5)
- 3-Cyclohexyl-1-cyclopentylpropan-1-one (CAS 749928-20-9)
- (R)-(+)-3-(Dimethylamino)pyrrolidine Dihydrochloride (CAS 864448-61-3)
- (1S,3S,4S)-3-hydroxy-7-azabicyclo[2.2.1]Heptane-1-carboxylic acid (CAS 186958-03-2)
- Insulin Degludec Impurity 14 (CAS CATO-C4X-215714)
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