Rimegepant Impurity 139 CAS CATO-C4X-2487139
| CAS No. | CATO-C4X-2487139 |
| Molecular Formula | C14H18N4O3 |
| Molecular Weight | 290.32 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Rimegepant Impurity 139 (CAS CATO-C4X-2487139), a pharmacopoeial impurity reference standard (molecular formula C14H18N4O3, MW 290.32 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, Rimegepant Impurity 139 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 290.32 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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.
As a certified reference material (CRM), Rimegepant Impurity 139 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C14H18N4O3 |
| Molecular Weight | 290.32 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 |
| Nitrogen Atoms | 4 |
Related Rimegepant Standards
- Rimegepant Impurity 101 (CAS CATO-C4X-2487101)
- Rimegepant Impurity 124 (CAS CATO-C4X-2487124)
- Rimegepant Impurity 128 (CAS CATO-C4X-2487128)
- Rimegepant Impurity 38 (CAS 1373116-05-2)
- Rimegepant Impurity 48 (CAS CATO-C4X-248748)
- Rimegepant Impurity 49 (CAS CATO-C4X-248749)
- Rimegepant Impurity 50 (CAS CATO-C4X-248750)
- Rimegepant Impurity 65 (CAS CATO-C4X-248765)
Recommended Standards
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- Trimethoprim (CAS 738-70-5)
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- Disperse Yellow 39 surrogate (CAS 56208-37-8)
- Enoxacin Impurity 2 (CAS CATO-C4X-19652)
- Tegoprazan Impurity 95 (CAS 2166713-42-2)
- Abrocitinib Impurity 32 (CAS CATO-C4X-288432)
- 4-(2,4-diisopropylphenyl)-1,3-thiazol-2-amine (CAS 857041-69-1)
- 5-Benzylidene-2-thioxodihydropyrimidine-4,6(1H,5H)-dione (CAS 27470-61-7)
- 2-(4-(4-Fluorophenyl)-2,2-dimethyltetrahydro-2H-pyran-4-yl)ethan-1-amine hydrochloride (CAS 464878-27-1)
- 1-Chloro-3-fluoro-2-(2-methoxyethoxy)-4-nitrobenzene (CAS 1881322-28-6)
- 4-Amino-6-bromo-3-iodo (1H)Indazole (CAS 1000342-70-0)
- Dotinurad impurity 112 (CAS CATO-C4X-2494112)
- Semaglutide impurity 194 (CAS CATO-C4X-2226194)
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