Papaverine impurity 24 CAS 33490-73-2
| CAS No. | 33490-73-2 |
| Molecular Formula | C19H22O6 |
| Molecular Weight | 346.37 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Papaverine impurity 24 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.
Papaverine impurity 24 (CAS 33490-73-2) is a certified pharmaceutical impurity reference standard with the molecular formula C19H22O6 and a molecular weight of 346.37 g/mol.
The molecular framework of Papaverine impurity 24 (C19H22O6) is characterized by a flavonoid core, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
Physical & Chemical Properties
| Molecular Formula | C19H22O6 |
| Molecular Weight | 346.37 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 methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1966 |
Related Papaverine Standards
- Papaverine Impurity 26 (CAS CATO-C4X-206726)
- Papaverine Impurity 39 (CAS 75608-42-3)
- Papaverine Impurity 40 (CAS 361389-65-3)
- Papaverine Impurity 42 (CAS CATO-C4X-206742)
- Papaverine Hydrochloride - Impurity E (CAS 13074-31-2)
- Papaverine-d3 Hydrochloride (CAS 113718-66-4)
- Papaverine Impurity 28 (CAS 20122-48-9)
- Papaverine (CAS 58-74-2)
Recommended Standards
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- Gibberellenic Acid (CAS 546-09-8)
- Mexiletine Impurity N4 (CAS 1051392-53-0)
- Doripenem Impurity 9(Sodium Salt) (CAS Doripenem Impurity 20 (Sodium Salt))
- Fluconazole Impurity 48 (CAS 1222655-38-0)
- D-Sorbitol Polyglycidyl Ether (Technical Grade) (CAS 68412-01-1)
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- Dicyclohexylamine N6-((benzyloxy)carbonyl)-N2-(tert-butoxycarbonyl)-D-lysinate (CAS 76477-42-4)
- (2-Fluorobenzoyl)glycine (CAS 363-34-8)
- Des-Ile27-Tirzepatide (CAS CATO-CPTD788946)
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