Sivelestat sodium Impurity 32 CAS CATO-C4X-212332
| CAS No. | CATO-C4X-212332 |
| Molecular Formula | C11H13ClO4S |
| Molecular Weight | 276.74 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Sivelestat sodium Impurity 32 (CAS CATO-C4X-212332) is a certified pharmaceutical impurity reference standard with the molecular formula C11H13ClO4S and a molecular weight of 276.74 g/mol.
The molecular framework of Sivelestat sodium Impurity 32 (C11H13ClO4S) is characterized by a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by its high hydrophobicity (logP), which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
As a certified reference material (CRM), Sivelestat sodium Impurity 32 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.
Physical & Chemical Properties
| Molecular Formula | C11H13ClO4S |
| Molecular Weight | 276.74 g/mol |
| Purity | >95% |
| Storage | Store in a cool place (≤25°C), keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Sulfur Atoms | 1 |
Related Sivelestat Standards
- Sivelestat sodium Impurity 2 (CAS 150374-99-5)
- Sivelestat sodium impurity 41 (CAS CATO-C4X-212341)
- Sivelestat sodium impurity 42 (CAS CATO-C4X-212342)
- Sivelestat sodium impurity 43 (CAS CATO-C4X-212343)
- Sivelestat Impurity 10 (CAS CATO-C4X-212310)
- Sivelestat Impurity 27 (CAS CATO-C4X-212327)
- Sivelestat sodium impurity 45 (CAS CATO-C4X-212345)
- Sivelestat Impurity 18 (CAS 150374-97-3)
Recommended Standards
- 5-Chloro-N,3-dimethyl-2-(methylsulfonamido)benzamide (CAS 2831004-03-4)
- Oxolan-2-ylmethyl 4-chlorobenzene-1-sulfonate (CAS 929971-67-5)
- N-[(6-Chloroimidazo[2,1-b][1,3]thiazol-5-yl)methylene](3-pyridinyl)methanamine (CAS 241132-70-7)
- 7-ACCA Impurity 3 (CAS CATO-C4X-23133)
- Baloxavir Impurity 22 (CAS 1985607-69-9)
- Ergosterol Impurity 8 (CAS 4712-11-2)
- Trelagliptin Impurity 33 (CAS CATO-C4X-104633)
- 1,4-Dimethylbenzo[g]quinolin-2(1H)-one (CAS 33333-84-5)
- 5-(Aminomethyl)-2,4-dichlorobenzenesulfonamide (CAS 1495691-86-5)
- 4-(tert-Butoxy)-2-cyclopropoxy-1-nitrobenzene (CAS 1243346-55-5)
- 1-(2-Hydroxy-3-nitrophenyl)propan-1-one (CAS 91991-98-9)
- 2-(2,2-Dimethyltetrahydro-2H-pyran-4-yl)ethan-1-amine hydrochloride (CAS 1021920-27-3)
- Methyl-3-isocyano-4-chlorobenzoate (CAS 730971-37-6)
- Semaglutide Impurity 124 (CAS CATO-C4X-2226124)
Why CATO?
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