Policresulen Impurity 19 Sodium Salt CAS 41481-17-8 (free acid)
| CAS No. | 41481-17-8 (free acid) |
| Molecular Formula | C8H7O6S |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Policresulen Impurity 19 Sodium Salt 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.
Policresulen Impurity 19 Sodium Salt (CAS 41481-17-8 (free acid)) is a certified pharmaceutical impurity reference standard with the molecular formula C8H7O6SNa and a molecular weight of 254.19 g/mol.
Structurally, Policresulen Impurity 19 Sodium Salt (C8H7O6SNa) contains a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 5.5, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 254.19 g/mol, it falls into the medium-molecular-weight range. 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 | C8H7O6S Na |
| Molecular Weight | 254.19 g/mol |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Sulfur Atoms | 1 |
Related Policresulen Standards
- Policresulen(50% Aqueous Solution) (CAS 101418-00-2)
- Policresulen impurity 21 (CAS 102014-39-1)
- Policresulen Impurity N1 (CAS 15534-74-4)
- Policresulen Impurity 16 (CAS 17011-26-6)
- Policresulen Impurity 6 (CAS 17688-83-4)
- Policresulen Impurity N11 (CAS 3077-71-2)
- Policresulen Impurity 14 (CAS 41481-17-8)
- Policresulen Impurity 17 (CAS 4198-72-5)
Recommended Standards
- Triamcinolone Acetonide Impurity 38 (CAS CATO-C4X-132638)
- Boceprevir Impurity 10 (CAS CATO-C4X-252510)
- Sulpiride EP Impurity D (CAS 22117-85-7)
- tert-Butyl 4-(3-methylbutoxy)piperidine-1-carboxylate (CAS 2034155-23-0)
- 2,4,4-Trimethoxybutan-1-amine (CAS 1370360-21-6)
- 6,7-Dihydro-1H-cyclopenta[b]pyridin-4(5H)-one (CAS 101234-73-5)
- Methyl 6-oxo-4-(trifluoromethyl)-1,6-dihydropyridine-2-carboxylate (CAS 1807053-50-4)
- 2,3-Dihydroimidazo[1,2-a]pyrazine (CAS 6664-41-1)
- Dicyanocobinamide (CAS 27792-36-5)
- Insulin Degludec impurity 4 (CAS CATO-C4X-21574)
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