Fasudil Impurity 16 CAS 1263357-67-0
| CAS No. | 1263357-67-0 |
| Molecular Formula | C9H7NO3S |
| Molecular Weight | 209.22 g/mol |
| 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 16 (CAS 1263357-67-0) is a certified pharmaceutical impurity reference standard with the molecular formula C9H7NO3S and a molecular weight of 209.22 g/mol.
The molecular framework of Fasudil Impurity 16 (C9H7NO3S) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO manufactures Fasudil Impurity 16 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 | C9H7NO3S |
| Molecular Weight | 209.22 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 | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 1 |
| Sulfur Atoms | 1 |
Related Fasudil Standards
- Fasudil Impurity N2 (CAS 23261-58-7)
- Fasudil Impurity 11 (CAS CATO-C4X-136511)
- Fasudil Impurity 15 (CAS 27655-40-9)
- Fasudil Impurity 18 (CAS CATO-C4X-136518)
- Fasudil Impurity 19 (CAS CATO-C4X-136519)
- Fasudil Impurity 29 (CAS CATO-C4X-136529)
- Fasudil Impurity 30 (CAS CATO-C4X-136530)
- Fasudil Impurity 7 (CAS 85-48-3)
Recommended Standards
- 1-(3-Fluorophenyl)pyrrolidine-3-carboxylic acid 933751-65-6 (CAS 933751-65-6)
- 1683AF 4-[(3-Fluorophenyl)azo]-morpholine 883542-75-4 C10H12FN3O (CAS 883542-75-4)
- 6046-38-4 6534AE C9H7NO3S Quinoline-2-sulfonic acid (CAS 6046-38-4)
- Quinoline-7-sulfonic acid (CAS 65433-96-7)
- Sildenafil Impurity 47 (CAS 247583-78-4)
- Roflumilast Impurity 1 (CAS 162401-43-6)
- Fenbufen impurity 7 (CAS CATO-C4X-19397)
- 1a-Methyl-5a-androstan-3a,17b-diol (CAS 4349-94-4)
- 4-Amino-1-phenyl-1H-pyrazole-3-carboxylic acid (CAS 64299-26-9)
- Ethyl 5-(2-cyanoacetyl)-2,4-dimethyl-1H-pyrrole-3-carboxylate (CAS 303126-23-0)
- Citreorosein (CAS 481-73-2)
- 2-Benzhydryl-5-oxa-2,8-diazaspiro[3.5]Nonan-7-one (CAS 1179337-02-0)
- 2-Amino-2,3-dihydro-1h-inden-1-ol hydrochloride (CAS 13935-78-9)
- Semaglutide impurity 205 (CAS CATO-C4X-2226205)
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