Fudosteine Impurity 10 CAS CATO-C4X-144710
| CAS No. | CATO-C4X-144710 |
| Molecular Formula | C9H19NO4S |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Fudosteine Impurity 10 (CAS CATO-C4X-144710), a pharmacopoeial impurity reference standard (molecular formula C9H19NO4SHCl, MW 273.77 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Fudosteine Impurity 10 (C9H19NO4SHCl) contains an amide group, a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 0.0, corresponding to approximately 0 ring(s) or double-bond equivalent(s). With a molecular weight of 273.77 g/mol, it falls into the medium-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
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 | C9H19NO4S HCl |
| Molecular Weight | 273.77 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 0.0 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Fudosteine Standards
- Fudosteine Impurity 20 (CAS 1023971-10-9)
- Fudosteine Impurity 45 (CAS 1023971-15-4)
- Fudosteine Impurity 25 (CAS 121234-18-2)
- Fudosteine (CAS 13189-98-5)
- Fudosteine Impurity 22 (CAS 1480319-53-6)
- Fudosteine Impurity 2 (CAS 1480319-53-6 (free base))
- Fudosteine Impurity 21 (Mixture of Diastereomers) (CAS 209665-22-5)
- Fudosteine Impurity 1 (Mixture of Diastereomers) (CAS 209665-22-5(free base))
Recommended Standards
- Levosimendan Impurity 36 (CAS CATO-C4X-130836)
- Vericiguat Impurity 17 (CAS 625115-49-3)
- Erlotinib impurity 25 (CAS 207726-02-6)
- (4-Bromo-3-(difluoromethyl)-6-(trifluoromethyl)pyridin-2-yl)methanol (CAS 1805261-08-8)
- 4-(1-(tert-Butoxycarbonyl)pyrrolidin-2-yl)butanoic acid (CAS 1421602-08-5)
- 2-(2,6-Difluoro-3-nitrophenyl)acetic Acid (CAS 361336-78-9)
- N-ethyl-2-(quinoline-6-carbonyl)hydrazine-1-carbothioamide (CAS 184706-09-0)
- 4-Fluoro-3-(piperazin-1-yl)aniline (CAS 105377-03-5)
- 2-n-(Naphthalen-1-yl)pyridine-2,3-diamine (CAS 78750-71-7)
- Semaglutide impurity 201 (CAS CATO-C4X-2226201)
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