Sulfadimethoxine Impurity 19 CAS CATO-C4X-150419
| CAS No. | CATO-C4X-150419 |
| Molecular Formula | C6H8N2O3 |
| Molecular Weight | 156.14 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
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 supplies Sulfadimethoxine Impurity 19 (CAS CATO-C4X-150419), a pharmacopoeial impurity reference standard (molecular formula C6H8N2O3, MW 156.14 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C6H8N2O3, Sulfadimethoxine Impurity 19 contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 156.14 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C6H8N2O3 |
| Molecular Weight | 156.14 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO, water |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 2 |
Related Sulfadimethoxine Standards
- Sulfadimethoxine EP Impurity A (CAS 3289-50-7)
- Sulfadimethoxine Impurity (CAS 80314-58-5)
- Sulfadimethoxine EP Impurity E (CAS 63-74-1)
- Sulfadimethoxine EP Impurity D (CAS 121-57-3)
- Sulfadimethoxine Impurity 20 (CAS CATO-C4X-150420)
- Sulfadimethoxine Impurity (CAS 69943-39-1)
- Sulfadimethoxine Impurity (CAS 69943-38-0)
- Sulfadimethoxine EP Impurity C (CAS 121-62-0)
Recommended Standards
- Benserazide Impurity 53 (CAS 773868-38-5)
- Cefazolin Impurity 28 (CAS 26240-90-4)
- Benserazide Impurity 31 (CAS 437988-46-0)
- Fluorouracil Impurity 28 (CAS CATO-C4X-164928)
- Ibrutinib Impurity 97 (CAS 2256059-43-3)
- Raltitrexed Impurity 3 (CAS CATO-C4X-13863)
- Empagliflozin Impurity N37 (CAS 2452301-33-4)
- 1-(4-(2-Methoxyethoxy)phenyl)ethan-1-one (CAS 60893-75-6)
- 4-Methyl-3-(2,4,6-trimethylbenzenesulfonamido)benzoic acid (CAS 439935-54-3)
- 2-hexylsulfonyl chloride (CAS 14532-24-2)
- Salbutamol Impurity 176 (CAS CATO-C4X-1176176)
- 4-Bromo-5-chloro-2-fluorobenzenethiol (CAS 1208077-92-2)
- 1-(1-Adamantyl)-2-fluoro-1-ethanone (CAS 75600-43-0)
- Neuroendocrine Regulatory Peptide-4 (human, mouse, rat) (H-7266.1000) (CAS 922704-18-5)
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