Fasudil Impurity 28 CAS 125398-82-5
| CAS No. | 125398-82-5 |
| Molecular Formula | C11H16N2O2S |
| Molecular Weight | 240.32 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Fasudil Impurity 28 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.
Fasudil Impurity 28 (CAS 125398-82-5) is a certified pharmaceutical impurity reference standard with the molecular formula C11H16N2O2S and a molecular weight of 240.32 g/mol.
Fasudil Impurity 28 (C11H16N2O2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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.
Physical & Chemical Properties
| Molecular Formula | C11H16N2O2S |
| Molecular Weight | 240.32 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Fasudil Standards
- Fasudil Impurity 6 (CAS 2044706-58-1)
- Fasudil impurity 32 (CAS CATO-C4X-136561)
- Fasudil Impurity 38 (CAS 105627-80-3)
- Fasudil Impurity 44 (CAS 84468-22-4)
- Fasudil Impurity 33 (CAS CATO-C4X-136533)
- Fasudil Impurity 34 (CAS CATO-C4X-136534)
- Fasudil Impurity 23 (CAS 84468-15-5)
- Fasudil Impurity 12 (CAS 1211517-62-2)
Recommended Standards
- 950269-69-9 Ethyl 4-methyl-2-pyrrolidin-1-yl-1,3-thiazole-5-carboxylate MFCD14756688 (CAS 950269-69-9)
- Albendazole impurity 32 (CAS CATO-C4X-153532)
- 898771-86-3 1-[5-(1,3-Dioxolan-2-yl)thiophen-2-yl]pentan-1-one DTXSID80641874 (CAS 898771-86-3)
- Albendazole impurity 37 (CAS CATO-C4X-153537)
- Vortioxetine impurity 158 (CAS CATO-C4X-1056158)
- Velpatasvir impurity 18 (CAS CATO-C4X-289418)
- N-Nitroso Bromhexine impurity 58 (CAS CATO-C4X-106058)
- Methyl 7-azabicyclo[2.2.1]heptane-1-carboxylate (CAS 769116-04-3)
- (R)-1-(3-chloro-5-methylphenyl)-2,2,2-trifluoroethan-1-amine (CAS 1213337-97-3)
- Cefuroxime Axetil EP Impurity D (CAS 55268-75-2)
- 2-(3,3-Difluoropiperidin-1-yl)-5-nitrobenzaldehyde 1779123-28-2 (CAS 1779123-28-2)
- 4-Chloro-9-methoxy-5H-pyrimido[5,4-b]indole (CAS 843621-80-7)
- (2-(tert-Butoxy)-6-cyclopropoxyphenyl)methanamine (CAS 1243386-02-8)
- Semaglutide impurity 215 (CAS CATO-C4X-2226215)
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