Sulfadimethoxine Impurity 20 CAS CATO-C4X-150420
| CAS No. | CATO-C4X-150420 |
| Molecular Formula | C7H10ClN3O |
| Molecular Weight | 187.63 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of Sulfadimethoxine Impurity 20 is closely related to an amide group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
As a process- or degradation-related impurity, Sulfadimethoxine Impurity 20 (CAS CATO-C4X-150420, C7H10ClN3O) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to an amide group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, Sulfadimethoxine Impurity 20 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 187.63 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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), Sulfadimethoxine Impurity 20 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 | C7H10ClN3O |
| Molecular Weight | 187.63 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Sulfadimethoxine Standards
- Sulfadimethoxine EP Impurity D (CAS 121-57-3)
- Sulfadimethoxine EP Impurity E (CAS 63-74-1)
- Sulfadimethoxine Impurity (CAS 80314-58-5)
- Sulfadimethoxine Impurity (CAS 69943-39-1)
- Sulfadimethoxine Impurity (CAS 69943-38-0)
- Sulfadimethoxine EP Impurity C (CAS 121-62-0)
- Sulfadimethoxine Impurity 19 (CAS CATO-C4X-150419)
- Sulfadimethoxine EP Impurity A (CAS 3289-50-7)
Recommended Standards
- N-((4-Chloro-3-methyl-1H-pyrazol-1-yl)methyl)acetamide (CAS 850255-09-3)
- Atrazine-Desethyl (CAS 6190-65-4)
- N-((3-Chloro-1-methyl-1H-pyrazol-5-yl)methyl)acetamide (CAS 221274-96-0)
- 3-(3-Chloro-5-fluorophenyl)-1-propylamine (CAS 1000513-04-1)
- Peramivir Impurity 79 (CAS CATO-C4X-183379)
- Carbamazepine Impurity 14 (CAS CATO-C4X-118114)
- Cefotaxime Impurity 71 (CAS CATO-C4X-120171)
- 1-(4-(Trifluoromethyl)phenyl)-4,5-dihydro-1H-pyrazol-3-ol (CAS 100937-11-9)
- 6-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)pyrazin-2(1H)-one (CAS 2223053-64-1)
- 4-Methylbenzo[b]thiophen-3-amine (CAS 1602944-43-3)
- 2-(hydroxymethyl)benzo[d]oxazole-4-carbonitrile (CAS 1803839-51-1)
- 5-Bromo-3-methoxyquinolin-2(1H)-one (CAS 1434103-21-5)
- 5-(Methylthio)-3,7-dioxo-9-phenyl-8-oxa-2,4,6-triazanon-4-enoicAcidPhenylmethylEster (CAS 176106-49-3)
- Tirzepatide Impurity 34 (CAS CATO-C4X-324034)
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