Fasudil Dimer Impurity CAS 1337967-93-7
| CAS No. | 1337967-93-7 |
| Molecular Formula | C23H22N4O4S2 |
| Molecular Weight | 482.58 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), Fasudil Dimer Impurity meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Fasudil Dimer Impurity (CAS 1337967-93-7) is a certified pharmaceutical impurity reference standard with the molecular formula C23H22N4O4S2 and a molecular weight of 482.58 g/mol.
Based on its molecular formula C23H22N4O4S2, Fasudil Dimer Impurity contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 482.58 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C23H22N4O4S2 |
| Molecular Weight | 482.58 g/mol |
| Purity | >95% |
| 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 |
| Degree of Unsaturation (DBE) | 15.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1991 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 2 |
Related Fasudil Standards
- Fasudil Impurity 21 (CAS CATO-C4X-136521)
- 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 22 (CAS CATO-C4X-136522)
- Fasudil Impurity 26 (CAS 4392-52-3)
- Fasudil Impurity 47 (CAS 105628-70-4)
Recommended Standards
- Phosphine, 1,2-ethanediylbis[[2-(1-methylethyl)phenyl]phenyl-, (1S,1′S)- (CAS 794526-19-5)
- Fluticasone Propionate EP Impurity D (CAS 73205-13-7)
- 1,8-Bis(diphenylphosphino)octane (CAS 41625-30-3)
- Atrasentan Impurity 23 (CAS 1058393-35-3)
- Daprodustat Impurity 41 (CAS CATO-C4X-240741)
- Cholic Acid Impurity 14 (CAS CATO-C4X-116014)
- Lusutrombopag Impurity 34 (CAS CATO-C4X-208434)
- (S)-2-Acetamido-3,3-diphenylpropanoic acid (CAS 149597-89-7)
- N-(3-Chlorophenyl)-2-((3-(4-methoxyphenyl)-4-oxo-3,4,5,6,7,8-hexahydrobenzo[4,5]thieno[2,3-d]pyrimidin-2-yl)thio)acetamide (CAS 477330-67-9)
- N-Boc-1-allyl-1-aminocyclooctane (CAS 1335042-78-8)
- 5-Bromo-7-methoxyindoline-2,3-dione (CAS 1360955-43-6)
- Bilastine Impurity 12 HCl (CAS 2099128-83-1(Free base))
- 5-Amino-4-cyano-1-(4-chlorophenyl)-3-methylpyrazole (CAS 58791-82-5)
- C-Peptide 1 (rat) (CAS 41475-27-8)
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