Fasudil Impurity 32 CAS 116970-50-4
| CAS No. | 116970-50-4 |
| Molecular Formula | C11H13N3O2S |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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.
Fasudil Impurity 32 (CAS 116970-50-4) is a certified pharmaceutical impurity reference standard with the molecular formula C11H13N3O2SHCl and a molecular weight of 287.76 g/mol.
Based on its molecular formula C11H13N3O2SHCl, Fasudil Impurity 32 contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 287.76 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures Fasudil Impurity 32 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 | C11H13N3O2S HCl |
| Molecular Weight | 287.76 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 DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Fasudil Standards
- Fasudil Impurity 49 (CAS 103745-39-7)
- Fasudil Impurity 17 (CAS 105627-79-0)
- Fasudil Impurity 38 (CAS 105627-80-3)
- Fasudil Hydrochloride (CAS 105628-07-7)
- Fasudil Impurity 47 (CAS 105628-70-4)
- Fasudil Hydroxy (CAS 105628-72-6)
- Fasudil Impurity 23 DiHCl (CAS 116700-36-8)
- Fasudil Impurity 12 (CAS 1211517-62-2)
Recommended Standards
- Trazodone Impurity 13 (CAS 95-51-2)
- Acemetacin EP Impurity E (CAS 75302-98-6)
- Metaraminol Impurity 24 (CAS CATO-C4X-225224)
- Levothyroxine EP Impurity H (CAS 2055-97-2)
- Dilaurin (CAS 27638-00-2)
- 1-Methyl-1H-benzo[d]imidazole trifluoromethanesulfonate (CAS 361447-89-4)
- 3-(Pyridin-3-yl)thiomorpholine (CAS 887344-26-5)
- 2-(Dimethylamino)-2-(2-methylbenzo[d]thiazol-5-yl)acetic acid (CAS 1007879-06-2)
- LY-165,163 (CAS 1814-64-8)
- Semaglutide impurity 196 (CAS CATO-C4X-2226196)
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