Mianserin Impurity 87 CAS CATO-C4X-136987
| CAS No. | CATO-C4X-136987 |
| Molecular Formula | C18H20N2O6S2 |
| Molecular Weight | 424.49 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Mianserin Impurity 87 (CAS CATO-C4X-136987), a pharmacopoeial impurity reference standard (molecular formula C18H20N2O6S2, MW 424.49 g/mol) used for the identification and quantification of trace impurities in APIs.
Mianserin Impurity 87 (C18H20N2O6S2) contains a flavonoid core, an amide group, a sulfone 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.
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 | C18H20N2O6S2 |
| Molecular Weight | 424.49 g/mol |
| Purity | 95% |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Mianserin Standards
- Mianserin impurity 27 (CAS CATO-C4X-136927)
- Mianserin Impurity 101 (CAS CATO-C4X-1369101)
- Mianserin impurity 24 (CAS CATO-C4X-136924)
- Mianserin Impurity 83 (CAS CATO-C4X-136983)
- Mianserin Impurity 86 (CAS CATO-C4X-136986)
- Mianserin Impurity 96 (CAS CATO-C4X-136996)
- Mianserin Impurity 121 (CAS CATO-C4X-1369121)
- Mianserin impurity 22 (CAS CATO-C4X-136922)
Recommended Standards
- Tetramethylcurcumin (CAS 52328-97-9)
- Famotidine impurity 64 (CAS CATO-C4X-139264)
- Terbutaline Impurity 22 (CAS 50513-72-9)
- Paliperidone Impurity 69 (CAS CATO-C4X-172469)
- Ropinirole Impurity 5 (CAS CATO-C4X-17455)
- Salbutamol Impurity 77 (CAS 39235-57-9)
- Apremilast Impurity 30 (CAS CATO-C4X-100930)
- trans-1-Boc-3-amino-4-methylpiperidine (CAS 1271810-27-5)
- 1-(4-Methyl-6-(methylthio)-2-(thiophen-2-yl)pyrimidin-5-yl)ethanone (CAS 189152-42-9)
- tert-Butyl (S)-(1-methyl-2,5-dioxo-2,3,4,5-tetrahydro-1H-benzo[b]azepin-3-yl)carbamate (CAS 2124261-93-2)
- N-(2-(3-aminoazetidin-1-yl)-2-oxoethyl)acetamide (CAS 1487248-17-8)
- 2-((1H-indol-7-yl)oxy)acetonitrile (CAS 135328-50-6)
- 2,4-Diamino-5-(difluoromethyl)nicotinaldehyde (CAS 1805001-12-0)
- (Leu31,Pro3?)-Neuropeptide Y (porcine) trifluoroacetate salt (CAS 125580-28-1)
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