Arotinolol Impurity 43 CAS CATO-C4X-185443
| CAS No. | CATO-C4X-185443 |
| Molecular Formula | C13H16N2O3S3 |
| Molecular Weight | 344.47 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 Arotinolol Impurity 43.
CATO supplies Arotinolol Impurity 43 (CAS CATO-C4X-185443), a pharmacopoeial impurity reference standard (molecular formula C13H16N2O3S3, MW 344.47 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Arotinolol Impurity 43 (C13H16N2O3S3) 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.
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 Arotinolol Impurity 43 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 | C13H16N2O3S3 |
| Molecular Weight | 344.47 g/mol |
| Purity | 97%+ |
| 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 |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 3 |
Related Arotinolol Standards
- Arotinolol impurity 27 (CAS CATO-C4X-185427)
- Arotinolol Impurity 55 (CAS CATO-C4X-185455)
- Arotinolol Impurity 57 (CAS CATO-C4X-185457)
- Arotinolol Impurity 4 (CAS CATO-C4X-18544)
- Arotinolol Impurity 41 (CAS CATO-C4X-185441)
- Arotinolol Impurity 14 (CAS 1701418-50-9)
- Arotinolol Impurity 79 (CAS CATO-C4X-185479)
- Arotinolol Impurity 65 (CAS CATO-C4X-185465)
Recommended Standards
- Olanzapine Impurity 38 (CAS CATO-C4X-117838)
- (2R,3R,4R)-2-(((tert-butyldimethylsilyl)oxy)methyl)-3,4-dihydro-2H-pyran-3,4-diyl diacetate (CAS 136656-49-0)
- Piperidin-1-yl(4-(piperidin-1-ylsulfonyl)piperazin-1-yl)methanone (CAS 825607-36-1)
- 4-(tert-Butyldimethylsilanyloxy)-1-(2-cyanoethyl)-1H-indole-6-carboxylic acid (CAS 885266-76-2)
- N-Nitroso Moxifloxacin EP impurity C (CAS CATO-C4X-1074187)
- Nintedanib Impurity 48 DiHCl (CAS 5395-70-0)
- Avibactam Impurity 120 (CAS CATO-C4X-1348120)
- 3-[5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-2-thiazolyl]pyridine (CAS 1402165-88-1)
- 3-Bromobenzoyl isothiocyanate (CAS 78225-75-9)
- Nintedanib Impurity 37 (CAS 14719-83-6)
- 5-Bromo-6-oxo-2-(trifluoromethyl)-1,6-dihydropyridine-3-carboxylic acid (CAS 862111-62-4)
- 3-Cyclopropoxy-5-nitro-4-(trifluoromethyl)pyridine (CAS 1243409-29-1)
- Cefuroxime Impurity 88 (CAS CATO-C4X-124588)
- Fragment-[3-31]-Semaglutide (CAS CATO-C4X-2226113)
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