N-Nitroso Doxepin impurity 18 CAS CATO-C4X-122618
| CAS No. | CATO-C4X-122618 |
| Molecular Formula | C18H18N2O2 |
| Molecular Weight | 294.35 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including N-Nitroso Doxepin impurity 18.
N-Nitroso Doxepin impurity 18 (CAS CATO-C4X-122618) is a certified pharmaceutical impurity reference standard with the molecular formula C18H18N2O2 and a molecular weight of 294.35 g/mol.
Based on its molecular formula C18H18N2O2, N-Nitroso Doxepin impurity 18 contains a steroid core, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 294.35 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
CATO manufactures N-Nitroso Doxepin impurity 18 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 | C18H18N2O2 |
| Molecular Weight | 294.35 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 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related N Standards
- N-Nitroso Doxepin Impurity 13 (CAS CATO-C4X-122613)
- N-Nitroso Ranolazine Impurity 16 (CAS CATO-C4X-102616)
- N-Nitroso Tetracaine (CAS CATO-C4X-192319)
- N-Nitroso Fentanyl EP Impurity J (CAS 1184873-13-9)
- N-Nitroso Zidovudine (CAS CATO-C4X-178318)
- N-Nitroso Voglibose (CAS CATO-C4X-178017)
- N-Nitroso-Voglibose (CAS CATO-C4X-178020)
- N-Nitroso Venlafaxine EP Impurity D (CAS 2680662-11-5)
Recommended Standards
- Ixazomib Impurity 67 (CAS 1012-84-6)
- N-Nitrosodemethyl Doxepin (CAS CATO-C4X-122611)
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- Palbociclib Impurity 124 (CAS CATO-C4X-1125124)
- Lansoprazole Impurity 61 (CAS 2288740-69-0)
- Iguratimod Impurity 131 (CAS CATO-C4X-1826131)
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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