Perospirone Impurity 29 CAS 205673-80-9
| CAS No. | 205673-80-9 |
| Molecular Formula | C23H30N4O3S |
| Molecular Weight | 442.57 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Perospirone Impurity 29.
Perospirone Impurity 29 (CAS 205673-80-9) is a certified pharmaceutical impurity reference standard with the molecular formula C23H30N4O3S and a molecular weight of 442.57 g/mol.
Based on its molecular formula C23H30N4O3S, Perospirone Impurity 29 contains a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 442.57 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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), Perospirone Impurity 29 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 | C23H30N4O3S |
| Molecular Weight | 442.57 g/mol |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2015 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Perospirone Standards
- Perospirone Impurity 22 (CAS CATO-C4X-245822)
- Perospirone Impurity 3 (CAS CATO-C4X-24583)
- Perospirone Impurity 33 (CAS CATO-C4X-245833)
- Perospirone Impurity 54 (CAS CATO-C4X-245854)
- Perospirone Impurity 41 (CAS CATO-C4X-245841)
- Perospirone Impurity 5 (CAS CATO-C4X-24585)
- Perospirone Impurity 53 (CAS CATO-C4X-245853)
- Perospirone Impurity 29-d8 (CAS CATO-C4X-245861)
Recommended Standards
- Cilastatin EP Impurity B (CAS CATO-C4X-196039)
- Cilastatin EP Impurity B (Mixture Of Diastereomers) (CAS CATO-C4X-19602)
- H-Arg(Mtr)-OtBu (free base) (CAS 115608-61-2)
- Ethyl 2-(2-((4-methylbenzyl)thio)-4,5-diphenyl-1H-imidazol-1-yl)acetate (CAS 339278-02-3)
- Aprepitant impurity 31 (CAS 657419-48-2)
- Valganciclovir EP Impurity Q Isomer (CAS CATO-C4X-177430)
- Nifuratel Impurity 20 (CAS CATO-C4X-127220)
- 2-(3'-Fluoro-4'-methoxy-[1,1'-biphenyl]-4-yl)acetic acid (CAS 1334500-08-1)
- N-(2H-tetrazol-5-yl)cyclohexanecarboxamide (CAS 186302-37-4)
- 1-(2-((4-Methylbenzyl)thio)-4,5-dihydro-1H-imidazol-1-yl)-2-(thiophen-2-yl)ethan-1-one (CAS 851805-30-6)
- 2-(3-Chlorobenzyl)-4-((2,4-dichlorobenzyl)oxy)quinazoline (CAS 861208-37-9)
- 2-(3',4',5'-Trifluoro-[1,1'-biphenyl]-4-yl)ethanol (CAS 1443326-62-2)
- Ribociclib Impurity 9 (CAS 2460732-08-3)
- Semaglutide Impurity 186 (CAS CATO-C4X-2226186)
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