Mirtazapine EP Impurity B CAS 61337-89-1
| CAS No. | 61337-89-1 |
| Molecular Formula | C17H21N3O |
| Molecular Weight | 283.37 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Mirtazapine EP Impurity B 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, Mirtazapine EP Impurity B (CAS 61337-89-1, C17H21N3O) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Based on its molecular formula C17H21N3O, Mirtazapine EP Impurity B 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 283.37 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
Physical & Chemical Properties
| Molecular Formula | C17H21N3O |
| Molecular Weight | 283.37 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | 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.) | 1974 |
| Nitrogen Atoms | 3 |
Related Mirtazapine Standards
- Mirtazapine Impurity 25 (CAS CATO-C4X-151125)
- Mirtazapine Impurity 2 (CAS CATO-C4X-15112)
- Mirtazapine EP Impurity A (CAS 155172-12-6)
- Mirtazapine Impurity 3 (CAS 852524-23-3)
- S-Mirtazapine (CAS 61337-87-9)
- R-Mirtazapine (CAS 61364-37-2)
- Mirtazapine EP Impurity C (CAS 191546-96-0)
- Mirtazapine EP Impurity F (CAS 191546-97-1)
Recommended Standards
- Posaconazole Impurity 103 (CAS 74852-62-3)
- Upadacitinib Impurity 198 (CAS CATO-C4X-2405198)
- Tert-butyl 9-oxo-2,7,10-triazaspiro[5.6]dodecane-2-carboxylate (CAS 2490705-34-3)
- Upadacitinib Impurity 199 (CAS CATO-C4X-2405199)
- Nemonoxacin Impurity 1 (CAS 2770004-80-1)
- Ropivacaine Impurity 19 (CAS 1817657-89-8)
- Anastrozole Impurity 15 (CAS 2469244-33-3)
- Benzyl (6-azaspiro[2.5]Octan-1-yl)carbamate hydrochloride (CAS 1774897-50-5)
- 7-Fluoro-5-methoxy-2H-benzo[e][1,2,4]thiadiazin-3(4H)-one 1,1-dioxide (CAS 2100839-75-4)
- 4-Chloro-2-phenyl-5-(piperazin-1-yl)pyridazin-3(2h)-one hydrochloride (CAS 1052540-00-7)
- 1-Methyl-2,5-diphenyl-4-(piperidin-1-ylmethyl)-1,2-dihydro-3H-pyrazol-3-one (CAS 6629-13-6)
- 5-Bromo-4-chloro-2-methoxybenzonitrile (CAS 1239838-17-5)
- 5-Chloro-2-[(3,4-dichlorobenzyl)oxy]benzoic acid (CAS 62176-37-8)
- Insulin Degludec Impurity 16 (CAS CATO-C4X-215716)
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