Fasudil Impurity 2 CAS CATO-C4X-13652
| CAS No. | CATO-C4X-13652 |
| Molecular Formula | C14H16ClN3O2S |
| Molecular Weight | N/A |
| 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 Fasudil Impurity 2.
CATO supplies Fasudil Impurity 2 (CAS CATO-C4X-13652), a pharmacopoeial impurity reference standard (molecular formula C14H16ClN3O2SC2H4O2, MW 385.86 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Fasudil Impurity 2 (C14H16ClN3O2SC2H4O2) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 385.86 g/mol, it falls into the moderately-high-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
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 | C14H16ClN3O2S C2H4O2 |
| Molecular Weight | 385.86 g/mol |
| Purity | >95% |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| 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 32 (CAS 116970-50-4)
Recommended Standards
- Lacidipine BP Impurity A (CAS 103890-81-9)
- Oseltamivir Impurity 252 (CAS CATO-C4X-1720252)
- Flomoxef Impurity 21 (CAS CATO-C4X-138221)
- Carbofuran N,N-Dibutyl-2λ1-disulfan-1-amine (CAS 78081-77-3)
- 3-oxo-3-(piperazin-1-yl)propanenitrile (CAS 182231-04-5)
- 1-Methyl-3-(oxan-4-yl)-1H-pyrazole-4-carbaldehyde (CAS 1782032-82-9)
- 2-(2-(3-(3-Chlorophenyl)isoxazol-5-yl)phenyl)acetic acid (CAS 105803-73-4)
- Relebactam Impurity 123 (CAS CATO-C4X-2144123)
- Beclometasone Dipropionate Monohydrate (CAS 77011-63-3)
- Insulin B (22-25) (CAS 34367-73-2)
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