Sivelestat Impurity 29 CAS CATO-C4X-212329
| CAS No. | CATO-C4X-212329 |
| Molecular Formula | C11H13O5S |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Structurally, Sivelestat Impurity 29 (C11H13O5SNa) 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 280.27 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).
CATO supplies Sivelestat Impurity 29 (CAS CATO-C4X-212329), a pharmacopoeial impurity reference standard (molecular formula C11H13O5SNa, MW 280.27 g/mol) used for the identification and quantification of trace impurities in APIs.
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 Sivelestat Impurity 29 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 | C11H13O5S Na |
| Molecular Weight | 280.27 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 Sivelestat Standards
- Sivelestat Impurity 17 (CAS 10167-30-3)
- Sivelestat Impurity 7 (CAS 1071827-84-3)
- Sivelestat Impurity 9 (CAS 1094231-79-4)
- Sivelestat (CAS 127373-66-4)
- Sivelestat sodium Impurity 5 (CAS 127373-95-9)
- Sivelestat Impurity 18 (CAS 150374-97-3)
- Sivelestat Impurity 13 (CAS 150374-98-4)
- Sivelestat sodium Impurity 2 (CAS 150374-99-5)
Recommended Standards
- Efinaconazole Impurity 33 (CAS CATO-C4X-124333)
- Haloperidol EP Impurity E (CAS 1391054-69-5)
- Diclofenac Impurity 27 (CAS CATO-C4X-105127)
- (2R,3R,4S,5S,6R)-2-(2-aminoethoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol (CAS 70337-78-9)
- Ribavirin Impurity 26 (CAS 57281-13-7)
- 898772-47-9 5-Chloro-1-[5-(1,3-dioxolan-2-yl)thiophen-2-yl]pentan-1-one DTXSID80641894 (CAS 898772-47-9)
- [3-cyano-6-(ethylamino)pyrazolo[1,5-a]pyridin-4-yl] trifluoromethanesulfonate (CAS 2649419-77-0)
- 4-Chloro-N-(naphthalen-1-yl)benzamide (CAS 96963-52-9)
- FlAsH-EDT2 (CAS 212118-77-9)
- [D-Phe22]Semaglutide (CAS CATO-C4X-2226222)
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