Mianserin Impurity 91 CAS 1192015-20-5
| CAS No. | 1192015-20-5 |
| Molecular Formula | C24H26N2O |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Mianserin Impurity 91 is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
CATO supplies Mianserin Impurity 91 (CAS 1192015-20-5), a pharmacopoeial impurity reference standard (molecular formula C24H26N2OC4H4O4, MW 474.56 g/mol) used for the identification and quantification of trace impurities in APIs.
Mianserin Impurity 91 (C24H26N2OC4H4O4) contains a steroid core, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
As a certified reference material (CRM), Mianserin Impurity 91 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 | C24H26N2O C4H4O4 |
| Molecular Weight | 474.56 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1989 |
| Nitrogen Atoms | 2 |
Related Mianserin Standards
- Mianserin impurity 02 (CAS 1074-11-9)
- (±)-Mianserin-d3 Hydrochloride (methyl-d3) (CAS 1219804-97-3)
- Mianserin Impurity 80 (CAS 1260761-23-6)
- Mianserin Impurity 114 (CAS 1314960-88-7)
- Mianserin Impurity 102 HCl (CAS 131962-87-3)
- Mianserin impurity 43 (CAS 13665-04-8)
- Mianserin EP impurity B (CAS 140636-22-2)
- Mianserin Impurity 116 (CAS 142643-19-4)
Recommended Standards
- Cholesterol Impurity 35 (CAS 64519-14-8)
- Famotidine EP Impurity J HCl (CAS 1798006-30-0)
- Formoterol EP Impurity B (CAS 1224588-66-2)
- 2-(3-(Chloromethyl)-6-methoxypyridin-2-yl)ethyl methanesulfonate (CAS 1003589-87-4)
- 2-Methoxy-5-(methoxycarbonyl)-1,3-phenylene diacetate (CAS 13089-97-9)
- Fmoc-p-fluoro-D-Phe-OH (CAS 177966-64-2)
- (2E)-3-(3-Chlorophenyl)-2-{5-[(1H-1,2,4-triazol-1-yl)methyl]-1H-1,2,4-triazol-3-yl}prop-2-enenitrile (CAS 1164520-60-8)
- 2-(4-(Chloromethyl)-6-(difluoromethyl)-5-(trifluoromethoxy)pyridin-2-yl)acetic acid (CAS 1805156-34-6)
- Dexamethasone Impurity 97 (CAS CATO-C4X-116597)
- Semaglutide impurity 37 (CAS CATO-C4X-222637)
Why CATO?
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- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com