Sulfasalazine EP Impurity E Trisodium Salt CAS 1391062-34-2 (free acid)
| CAS No. | 1391062-34-2 (free acid) |
| Molecular Formula | C29H19N6O7S2 |
| Molecular Weight | N/A |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
CATO supplies Sulfasalazine EP Impurity E Trisodium Salt (CAS 1391062-34-2 (free acid)), a pharmacopoeial impurity reference standard (molecular formula C29H19N6O7S2Na, MW 650.62 g/mol) used for the identification and quantification of trace impurities in APIs.
The molecular framework of Sulfasalazine EP Impurity E Trisodium Salt (C29H19N6O7S2Na) 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. 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 manufactures Sulfasalazine EP Impurity E Trisodium 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.
Physical & Chemical Properties
| Molecular Formula | C29H19N6O7S2 3*Na |
| Molecular Weight | 650.62 g/mol |
| Purity | 97%+ |
| 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) | 23.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 2 |
Related Sulfasalazine Standards
- Sulfasalazine EP Impurity I (CAS 1310803-27-0)
- Sulfasalazine-D4 (CAS 1346606-50-5)
- Sulfasalazine Impurity 2 (RRT 0.75) (CAS 139-56-0)
- Sulfasalazine EP Impurity E (CAS 1391062-34-2)
- Sulfasalazine EP Impurity A (CAS 1391062-35-3)
- Sulfasalazine EP Impurity G (CAS 1391062-37-5)
- Sulfasalazine EP Impurity G Disodium Salt (CAS 1391062-37-5 (free acid))
- Sulfasalazine EP Impurity G HCl (CAS 1391062-37-5 (free base))
Recommended Standards
- Ibandronic Impurity 8 (CAS 76257-73-3)
- Daclatasvir Impurity 17 (CAS CATO-C4X-184817)
- Brivaracetam Impurity 67 (CAS 357338-13-7)
- N-(5-nitropyridin-2-yl)cyclopropanecarboxamide (CAS 26207-88-5)
- 3-(4-Hydroxyphenyl)-1H-pyrazole-4-carbaldehyde (CAS 879996-57-3)
- 2,4-Dichlorothiazole (CAS 4175-76-2)
- Morantel impurity 1 (CAS CATO-C4X-30741)
- 2-(Boc-amino)-4-fluorobenzoic Acid (CAS 1019384-47-4)
- α-Phenyl-2-piperidineacetonitrile (CAS 500780-11-0)
- Acetyl tetrapeptide-9(Dermican LS 9837) (CAS 928006-50-2)
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