Melitracen Impurity 18 CAS CATO-C4X-120218
| CAS No. | CATO-C4X-120218 |
| Molecular Formula | C21H25N |
| Molecular Weight | 291.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.
As a process- or degradation-related impurity, Melitracen Impurity 18 (CAS CATO-C4X-120218, C21H25N) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Melitracen Impurity 18 (C21H25N) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 291.43 g/mol, it falls into the medium-molecular-weight range. 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).
CATO manufactures Melitracen 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 | C21H25N |
| Molecular Weight | 291.43 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 |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 1 |
Related Melitracen Standards
- Melitracen (Base) (CAS 5118-29-6)
- Melitracen Impurity 14 (CAS CATO-C4X-120214)
- Melitracen Impurity 15 (CAS CATO-C4X-120215)
- Melitracen Impurity 16 (CAS CATO-C4X-120216)
- Melitracen Impurity 17 (CAS CATO-C4X-120217)
- Melitracen Impurity 12 (CAS CATO-C4X-120212)
- Melitracen Impurity 11 (CAS CATO-C4X-120211)
- Melitracen Impurity 1 (CAS 85118-29-2)
Recommended Standards
- Terbinafine EP Impurity C (CAS 187540-01-8)
- Maprotiline EP impurity E (CAS 23941-38-0)
- Terbinafine Impurity 51 (CAS CATO-C4X-133851)
- Fingolimod alpha-Amino Acid (CAS 596820-19-8)
- Allisartan Isoproxil Impurity 13 (CAS CATO-C4X-321713)
- Pregnenolone Impurity 13 (CAS 68520-34-3)
- Dapoxetine Impurity 9 (CAS 119357-39-0)
- 1-(4-Chlorophenyl)-N-((3-(thiophen-2-yl)-1,2,4-oxadiazol-5-yl)methyl)propan-1-amine (CAS 1031123-34-8)
- Methyl (R)-3-amino-3-(3,4,5-trifluorophenyl)propanoate (CAS 1213919-04-0)
- 4-(1,1-Bis(4-chlorophenyl)but-3-yn-1-yl)-4H-1,2,4-triazole (CAS 88557-73-7)
- Ethyl 4-(3-hydroxycyclobutyl)butanoate (CAS 2502187-75-7)
- 2-(4'-Bromo-[1,1'-biphenyl]-4-yl)quinoline (CAS 861206-61-3)
- 2-Furaldehyde Diethyl Acetal (CAS 13529-27-6)
- Semaglutide Impurity 151 xTFA (CAS CATO-C4X-2226151)
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