Mianserin EP Impurity B CAS CATO-C4X-13698
| CAS No. | CATO-C4X-13698 |
| Molecular Formula | C18H20N2O3S |
| Molecular Weight | 344.43 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Mianserin EP Impurity B (CAS CATO-C4X-13698) is a certified pharmaceutical impurity reference standard with the molecular formula C18H20N2O3S and a molecular weight of 344.43 g/mol.
Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Mianserin EP Impurity B is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 344.43 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 certified reference material (CRM), Mianserin EP Impurity B meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C18H20N2O3S |
| Molecular Weight | 344.43 g/mol |
| Purity | >95% |
| 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 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Mianserin Standards
- Mianserin Hydrochloride EP Impurity B (CAS CATO-C4X-136930)
- Mianserin EP Impurity F (CAS 157995-00-1)
- Mianserin impurity 32 (CAS CATO-C4X-136932)
- Mianserin EP Impurity D (CAS 157994-98-4)
- Mianserin Impurity 92 (CAS CATO-C4X-136992)
- Mianserin EP impurity B (CAS 140636-22-2)
- Mianserin impurity 29 (CAS 147086-11-1)
- Mianserin Impurity 111 (CAS CATO-C4X-1369111)
Recommended Standards
- Cefazolin EP Impurity A (CAS 30246-33-4)
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- Olanzapine Impurity 69 (CAS 2485860-97-5)
- Flomoxef Impurity 66 (CAS CATO-C4X-138266)
- Tolvaptan Impurity 64 (CAS CATO-C4X-195564)
- Phosphoramidite Impurity 24 (CAS CATO-C4X-288624)
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- Tert-butyl (R)-3-(4-amino-3-iodo-1H-pyrazolo[3,4-d]pyrimidin-1-yl)pyrrolidine-1-carboxylate (CAS 1422827-96-0)
- Des-Ser34-Gly33Tirzepatide (CAS CATO-CPTD788941)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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