Fasudil Impurity 22 CAS CATO-C4X-136522
| CAS No. | CATO-C4X-136522 |
| Molecular Formula | C22H30Br2N2O4S2 |
| Molecular Weight | 610.42 g/mol |
| 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 22.
CATO supplies Fasudil Impurity 22 (CAS CATO-C4X-136522), a pharmacopoeial impurity reference standard (molecular formula C22H30Br2N2O4S2, MW 610.42 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Fasudil Impurity 22 (C22H30Br2N2O4S2) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, bromine 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 610.42 g/mol, it falls into the high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
CATO manufactures Fasudil Impurity 22 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 | C22H30Br2N2O4S2 |
| Molecular Weight | 610.42 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°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 | Br-containing |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 2 |
Related Fasudil Standards
- Fasudil Impurity 21 (CAS CATO-C4X-136521)
- Fasudil Dimer Impurity (CAS 1337967-93-7)
- Fasudil Impurity 45 (CAS CATO-C4X-136545)
- Fasudil Impurity 41 (CAS 5769-35-7)
- Fasudil Impurity 27 (CAS 5451-44-5)
- Fasudil Impurity 39 (CAS 4403-78-5)
- Fasudil Impurity 26 (CAS 4392-52-3)
- Fasudil Impurity 47 (CAS 105628-70-4)
Recommended Standards
- 10-(4-Chlorophenyl)-5,5-difluoro-2,8-diiodo-1,3,7,9-tetramethyl-5H-dipyrrolo[1,2-c:2',1'-f][1,3,2]diazaborinin-4-ium-5-uide (CAS 1413403-23-2)
- 1,1,1-Trifluoro-N-((11bS)-4-((trifluoromethyl)sulfonamido)-4l5-dinaphtho[2,1-d:1',2'-f][1,3,2]dioxaphosphepin-4-ylidene)methanesulfonamide (CAS 2757103-42-5)
- Triethoxy-1H,1H,2H,2H-heptadecafluorodecylsilane (CAS 101947-16-4)
- 1,4-Bis((S)-3,7-dimethyloctyl)-2,5-diiodobenzene (CAS 211809-84-6)
- Thiamine Impurity 30 (CAS 100502-51-0)
- Upadacitinib Impurity 89 (CAS CATO-C4X-240589)
- Pioglitazone EP Impurity D (CAS 868754-41-0)
- 1-(2,3-Dihydro-4H-benzo[b][1,4]thiazin-4-yl)ethan-1-one (CAS 6397-16-6)
- Hydantoin Impurity 28 (CAS CATO-C4X-214628)
- 4-(1-hydroxyethyl)piperidin-2-one (CAS 1782898-74-1)
- Flame Orange (CAS 97404-02-9)
- 3-Bromo-5-cyclohexyl-1H-1,2,4-triazole (CAS 1227465-62-4)
- Prusogliptin impurity 3 (CAS CATO-C4X-32843)
- Pancreatic Polypeptide (bovine) (CAS 179986-89-1)
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