Entacapone Impurity 58 CAS CATO-C4X-162958
| CAS No. | CATO-C4X-162958 |
| Molecular Formula | C24H29N5O9 |
| Molecular Weight | 531.52 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Entacapone Impurity 58 (CAS CATO-C4X-162958), a pharmacopoeial impurity reference standard (molecular formula C24H29N5O9, MW 531.52 g/mol) used for the identification and quantification of trace impurities in APIs.
Entacapone Impurity 58 (C24H29N5O9) contains a flavonoid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
As a certified reference material (CRM), Entacapone Impurity 58 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 | C24H29N5O9 |
| Molecular Weight | 531.52 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 5 |
Related Entacapone Standards
- Entacapone 3-b-D-glucuronide (CAS 158069-75-1)
- Entacapone impurity 44 (CAS CATO-C4X-162944)
- Entacapone Impurity 5（Mixture of chiral isomers） (CAS CATO-C4X-16295)
- Entacapone Impurity 35 (CAS CATO-C4X-162935)
- Entacapone impurity 54 (CAS CATO-C4X-162954)
- Entacapone impurity 43 (CAS CATO-C4X-162943)
- Entacapone impurity 41 (CAS CATO-C4X-162941)
- Entacapone impurity 46 (CAS CATO-C4X-162946)
Recommended Standards
- Cetirizine impurity 38 (CAS CATO-C4X-158238)
- Carbidopa Impurity 20 (CAS CATO-C4X-231020)
- 5-((4-Acetamidophenyl)amino)-8-amino-9,10-dioxo-9,10-dihydroanthracene-1,7-disulfonic acid (CAS 93892-19-4)
- Carbidopa Impurity 27 (CAS CATO-C4X-231027)
- Vinpocetine Impurity 31 (CAS 2580-88-3)
- Pregabalin Impurity PD 0224378 (CAS CATO-C4X-13124)
- Cimetidine impurity 29 (CAS CATO-C4X-158929)
- 2-Hydroxyquinoline-6-sulfonyl Chloride (CAS 569340-07-4)
- 337533-96-7 5-tert-butyl-2-(2-methylphenyl)-3-pyrazolamine 5-tert-butyl-2-(2-methylphenyl)pyrazol-3-amine A821929 (CAS 337533-96-7)
- 2-(4-Ethylphenyl)-1H-benzo[d]imidazole-6-carboxylic acid (CAS 1097805-82-7)
- 1-(2-Chloro-5-(trifluoromethyl)pyridin-3-yl)ethan-1-one (CAS 944904-73-8)
- 4-Amino-3,6-diphenyl-3,7-dihydropyrimido[5,4-d]pyrimidine-2,8-dione (CAS 66482-88-0)
- 2-(4-Benzyl-3-methyl-5-oxo-2,5-dihydro-1H-pyrazol-1-yl)-6-oxo-1,6-dihydropyrimidine-5-carboxylic acid (CAS 866137-78-2)
- Semaglutide impurity 64 (CAS CATO-C4X-222664)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com