Dapoxetine Impurity 29 CAS CATO-C4X-143929
| CAS No. | CATO-C4X-143929 |
| Molecular Formula | C21H23NO |
| Molecular Weight | 305.41 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Dapoxetine Impurity 29 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.
As a process- or degradation-related impurity, Dapoxetine Impurity 29 (CAS CATO-C4X-143929, C21H23NO) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Dapoxetine Impurity 29 (C21H23NO) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 305.41 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C21H23NO |
| Molecular Weight | 305.41 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Dapoxetine Standards
- Dapoxetine Impurity 102 (CAS 119356-77-3)
- Dapoxetine Impurity 103 (CAS 1135682-44-8)
- Dapoxetine Impurity 9 (CAS 119357-39-0)
- Dapoxetine Impurity 88 (CAS CATO-C4X-143988)
- Dapoxetine Impurity 92 (CAS CATO-C4X-143992)
- Dapoxetine RC 2 (CAS 1776071-89-6)
- Dapoxetine Impurity 32 (CAS CATO-C4X-143932)
- Dapoxetine Impurity 40 (CAS CATO-C4X-143940)
Recommended Standards
- Cyproheptadine EP Impurity C (CAS 3967-32-6)
- Thebainone (CAS 467-98-1)
- Butamirate Impurity 2 (CAS CATO-C4X-15682)
- tert-Butyl (4-(4-(2-hydroxyethoxy)butoxy)butyl)carbamate (CAS 2681389-42-2)
- Ubenimex Impurity 13 (CAS CATO-C4X-185213)
- Milnacipran Impurity 42 (Mixture of Enantiomers) (CAS 165259-95-0)
- Spironolactone Impurity 15 (CAS CATO-C4X-134515)
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- MEthanesulfonic acid, 1-(methylsulfonyl) (CAS 44820-79-3)
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- (2E)-2-[(1E)-(Methoxyimino)methyl]-3-(4-methoxyphenyl)prop-2-enenitrile (CAS 337919-88-7)
- 4-(2-Methoxypyrimidin-4-yl)morpholine (CAS 1400644-32-7)
- (R)-1-(2-(hydroxymethyl)pyrrolidin-1-yl)propan-1-one (CAS 87131-47-3)
- Palmitoyl Tripeptide -5 · 2 TFA (CAS 623172-56-5)
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