Pitolisant impurity 4 CAS CATO-C4X-25204
| CAS No. | CATO-C4X-25204 |
| Molecular Formula | C9H19NO3S |
| Molecular Weight | 221.32 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 Pitolisant impurity 4.
As a process- or degradation-related impurity, Pitolisant impurity 4 (CAS CATO-C4X-25204, C9H19NO3S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Pitolisant impurity 4 (C9H19NO3S) contains an amide group, a sulfone group, a carboxylic acid 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.
CATO manufactures Pitolisant impurity 4 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H19NO3S |
| Molecular Weight | 221.32 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 1.0 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Pitolisant Standards
- Pitolisant impurity 13 (CAS 78358-09-5)
- Pitolisant impurity 8 (CAS CATO-C4X-25208)
- Pitolisant impurity 32 (CAS CATO-C4X-252032)
- Pitolisant impurity 21 (CAS CATO-C4X-252021)
- Pitolisant Impurity 53 (CAS CATO-C4X-252053)
- Pitolisant impurity 16 (CAS 31951-46-9)
- Pitolisant impurity 10 (CAS CATO-C4X-252010)
- Pitolisant impurity 28 (CAS CATO-C4X-252028)
Recommended Standards
- trans-N-[4-(hydroxymethyl)cyclohexyl]ethanesulfonamide (CAS 2169920-32-3)
- N,N'-Diphenylguanidine-d10 (CAS CATO-CCHM705396)
- tert-Butyl 2-(2-hydroxyethylthio)ethylcarbamate (CAS 75937-17-6)
- (E)-4-(Furan-2-yl)-2-((trimethylsilyl)oxy)but-3-enenitrile (CAS 105501-27-7)
- Finerenone Impurity 6 (CAS 2640280-83-5)
- Irbesartan Impurity 41 (CAS CATO-C4X-166641)
- Lidocaine Hydrochloride EP Impurity I (CAS 17289-54-2)
- 4-Chloro-2-[chloro(difluoro)-methoxy]-1-nitro-benzene (CAS 1417566-69-8)
- (E)-N'-Butylidene-2-chlorobenzohydrazide (CAS 130489-65-5)
- 4-(4-Acetyl-2-methoxyphenoxy)butanoic acid (CAS 174884-22-1)
- (4-Bromophenyl)(3-fluoro-4-methylphenyl)methanol (CAS 853348-88-6)
- 5-(4-Bromophenyl)-4-(3-fluoro-4-methylbenzoyl)-3-hydroxy-1-(pyridin-3-ylmethyl)-1H-pyrrol-2(5H)-one (CAS 618073-90-8)
- IDT8-2CHO (CAS 2206677-82-7)
- Liraglutide Impurity 22 (CAS 536721-25-2)
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