Mirtazapine Impurity 18 CAS 61338-13-4
| CAS No. | 61338-13-4 |
| Molecular Formula | C17H19N3O2 |
| Molecular Weight | 297.35 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Mirtazapine Impurity 18 (C17H19N3O2) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. 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 297.35 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Mirtazapine Impurity 18 (CAS 61338-13-4), a pharmacopoeial impurity reference standard (molecular formula C17H19N3O2, MW 297.35 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C17H19N3O2 |
| Molecular Weight | 297.35 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1974 |
| Nitrogen Atoms | 3 |
Related Mirtazapine Standards
- Mirtazapine Impurity 24 (CAS CATO-C4X-151124)
- S-Mirtazapine (CAS 61337-87-9)
- R-Mirtazapine (CAS 61364-37-2)
- Mirtazapine EP Impurity B (CAS 61337-89-1)
- 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)
Recommended Standards
- Dobutamine Impurity 53 (CAS CATO-C4X-129853)
- Oseltamivir Impurity 166 (CAS 204254-98-8)
- Dobutamine Impurity 50 (CAS CATO-C4X-129850)
- Ostamivir Impurity 206 (CAS CATO-C4X-1720206)
- Ribavirin Impurity 41 (CAS 905-14-6)
- Linaprazan Impurity 10 (CAS CATO-C4X-348610)
- Metaraminol Impurity N3 (CAS 19289-78-2)
- 3-Hydroxy desloratadine glucuronide (CAS 774538-89-5)
- N-(4-bromophenyl)-2-(2-ethoxy-4-formylphenoxy)acetamide (CAS 247592-79-6)
- 6-(Bromomethyl)-2,3'-bipyridine (CAS 1227588-93-3)
- 2,6-Xylyllithium (CAS 63509-96-6)
- Pyrrolo[1,2-a]quinoxaline (CAS 234-95-7)
- 3-Phenyl-4-(4-sulfamoylphenyl)isoxazole-5-carboxylic acid (CAS 181695-82-9)
- Semaglutide Impurity 176 (CAS CATO-C4X-2226176)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com