Sulfadimethoxine Impurity 13 CAS CATO-C4X-150413
| CAS No. | CATO-C4X-150413 |
| Molecular Formula | C11H12N4O4S |
| Molecular Weight | 296.30 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.
As a process- or degradation-related impurity, Sulfadimethoxine Impurity 13 (CAS CATO-C4X-150413, C11H12N4O4S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Sulfadimethoxine Impurity 13 (C11H12N4O4S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C11H12N4O4S |
| Molecular Weight | 296.30 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Sulfadimethoxine Standards
- Sulfadimethoxine EP Impurity F (CAS 19868-00-9)
- Sulfadimethoxine (CAS 122-11-2)
- Sulfadimethoxine-D4 (CAS 1020719-80-5)
- Sulfadimethoxine-D6 (CAS 73068-02-7)
- Sulfadimethoxine Impurity (CAS 13145-56-7)
- Sulfadimethoxine Related Compound 1 (CAS 74220-53-4)
- Sulfadimethoxine Impurity 21 (CAS CATO-C4X-150421)
- Sulfadimethoxine Impurity (CAS 98627-35-1)
Recommended Standards
- Furosemide Impurity 31 (CAS 4818-85-3)
- 3-(5,5-Bis-hydroxymethyl-4-oxo-4,5-dihydro-thiazol -2-ylamino)-benzoic acid 3-(5,5-bis-hydroxymethyl-4-oxo-4,5-dihydro-thiazol-2-ylamino)-benzoic acid 436088-77-6 (CAS 436088-77-6)
- Minoxidil EP Impurity D (CAS 75105-16-7)
- n-(4-Fluorophenyl)-5-methyl-3-phenylisoxazole-4-carboxamide (CAS 505088-42-6)
- Aprepitant Impurity 35 (CAS 74974-54-2)
- Letrozole Impurity 22 (CAS 876728-37-9)
- Amoxicillin double side chain impurity (CAS CATO-C4X-114840)
- N4-Ethyl-6-fluoropyrimidine-2,4-diamine (CAS 165258-68-4)
- 5,7-Dichloro-3-iodo-1H-pyrazolo[4,3-d]pyrimidine (CAS 1935431-10-9)
- 2-(But-2-ynyloxy)nicotinic acid (CAS 1935602-44-0)
- (2E)-N-(Butan-2-yl)-3-{4-[(2,4-dichlorophenyl)methoxy]phenyl}prop-2-enamide (CAS 477888-87-2)
- 1-((2-Fluorobenzyl)oxy)imidazolidine-2,4,5-trione (CAS 339103-88-7)
- Ethyl 2-Fluorothiazole-4-carboxylate (CAS 153027-86-2)
- Semaglutide impurity 38 (CAS CATO-C4X-222638)
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