Nerandomilast impurity 25 CAS CATO-C4X-347325
| CAS No. | CATO-C4X-347325 |
| Molecular Formula | C17H23N5O2S |
| Molecular Weight | 361.46 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Nerandomilast impurity 25 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 361.46 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.
Nerandomilast impurity 25 (CAS CATO-C4X-347325) is a certified pharmaceutical impurity reference standard with the molecular formula C17H23N5O2S and a molecular weight of 361.46 g/mol.
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), Nerandomilast impurity 25 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 | C17H23N5O2S |
| Molecular Weight | 361.46 g/mol |
| 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 1 |
Related Nerandomilast Standards
- Nerandomilast Impurity 33 (CAS CATO-C4X-347333)
- Nerandomilast Impurity 36 (CAS CATO-C4X-347336)
- Nerandomilast impurity 24 (CAS CATO-C4X-347324)
- Nerandomilast impurity 30 (CAS CATO-C4X-347330)
- Nerandomilast Impurity 35 (CAS CATO-C4X-347335)
- Nerandomilast impurity 2 (CAS CATO-C4X-34732)
- Nerandomilast impurity 9 (CAS CATO-C4X-34739)
- Nerandomilast impurity 14 (CAS CATO-C4X-347314)
Recommended Standards
- Cefprozil Impurity 62 (CAS CATO-C4X-149262)
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- Testosterone Impurity N15 (CAS 10190-93-9)
- Sarpogrelate Impurity 17 HCl (CAS 1659311-40-6(free base))
- Mizolastine Impurity 10 (CAS CATO-C4X-200610)
- Fudosteine Impurity 30 (CAS CATO-C4X-144730)
- 4-Bromo-2,6-difluorophenyl isothiocyanate (CAS 1000574-64-0)
- (3-Aminocyclopentyl)dimethylphosphine oxide (CAS 2287316-25-8)
- Methyl 1-acetyl-1H-indole-3-carboxylate (CAS 429079-52-7)
- Isavuconazole Impurity 139 (CAS CATO-C4X-1236139)
- 1,3-diethyl 2-(3,5-dichlorophenyl)propanedioate (CAS 1186194-50-2)
- Dendroaspis Natriuretic Peptide (CAS 255721-52-9)
- Semaglutide impurity 83 (CAS CATO-C4X-222683)
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