Pyronaridine Impurity 11 CAS CATO-C4X-297811
| CAS No. | CATO-C4X-297811 |
| Molecular Formula | C18H27N3O2 |
| Molecular Weight | 317.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Pyronaridine Impurity 11 (CAS CATO-C4X-297811), a pharmacopoeial impurity reference standard (molecular formula C18H27N3O2, MW 317.43 g/mol) used for the identification and quantification of trace impurities in APIs.
Pyronaridine Impurity 11 (C18H27N3O2) contains a steroid 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. 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.
CATO manufactures Pyronaridine Impurity 11 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 | C18H27N3O2 |
| Molecular Weight | 317.43 g/mol |
| Appearance | Off-white to pale 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
Related Pyronaridine Standards
- Pyronaridine Impurity 7 (CAS CATO-C4X-29787)
- Pyronaridine Impurity 18 (CAS CATO-C4X-297818)
- Pyronaridine Impurity 1 (CAS CATO-C4X-29781)
- Pyronaridine Impurity 16 (CAS 81935-64-0)
- Pyronaridine Impurity 7 (CAS 81935-60-6)
- Pyronaridine Impurity 10 (CAS 6626-40-0)
- Pyronaridine Impurity 12 (CAS CATO-C4X-297812)
- Pyronaridine Impurity 2 (CAS 1422180-92-4)
Recommended Standards
- 1-{4-[4-(3-Piperidinylmethoxy)phenyl]-1-piperazinyl}-1-ethanone 4123AF 946758-35-6 C18H27N3O2 (CAS 946758-35-6)
- 4-Keto 9-cis Retinoic Acid-d3 (CAS 1185241-31-9)
- tert-butyl 4-(5,6,7,8-tetrahydro-1,8-naphthyridin-2-yl)piperidine-1-carboxylate (CAS 206989-63-1)
- all-trans 4-Keto Retinoic Acid-(9-methyl)-d3 (CAS 1346606-26-5)
- Fasudil Impurity 44 (CAS 84468-22-4)
- Crizotinib impurity 29 (CAS CATO-C4X-102529)
- Enzalutamide Impurity 20 (CAS 1187368-67-7)
- R-(-)-Dihydrozeatin Riboside (CAS 64070-21-9)
- 2,4-Difluoro-6-nitroquinoline-3-carbonitrile (CAS 113944-50-6)
- 2-Methoxyazepane (CAS 107391-06-0)
- (2R,3R,4R,5R)-4-(Allyloxy)-5-(2,6-diamino-9H-purin-9-yl)-2-(hydroxymethyl)tetrahydrofuran-3-ol (CAS 133766-20-8)
- 6H,7H,8H,9H,11H-pyrido[2,1-b]quinazolin-11-one (CAS 2446-62-0)
- 1-(2,3-dihydroxypropyl)-1H-pyrazole-4-carboxylic acid hydrochloride (CAS 1864073-63-1)
- Crustacean Cardioactive Peptide (CAS 107090-96-0)
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