Dicloxacillin Impurity 3 CAS CATO-C4X-16153
| CAS No. | CATO-C4X-16153 |
| Molecular Formula | C21H21Cl2N3O7S |
| Molecular Weight | 530.38 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, Dicloxacillin Impurity 3 (CAS CATO-C4X-16153, C21H21Cl2N3O7S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
The molecular framework of Dicloxacillin Impurity 3 (C21H21Cl2N3O7S) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. 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. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), Dicloxacillin Impurity 3 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 | C21H21Cl2N3O7S |
| Molecular Weight | 530.38 g/mol |
| Purity | ≥90% |
| 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Dicloxacillin Standards
- Dicloxacillin Impurity 8 (CAS CATO-C4X-16158)
- Dicloxacillin Impurity C34 (CAS 42947-69-3)
- Dicloxacillin EP Impurity A (CAS CATO-C4X-16151)
- Dicloxacillin Impurity 7 (CAS CATO-C4X-16157)
- Dicloxacillin Impurity 4 (CAS CATO-C4X-16154)
- Dicloxacillin (CAS 3116-76-5)
- Dicloxacillin EP Impurity B (CAS 1642576-88-2)
- Dicloxacillin impurity 2 (CAS CATO-C4X-16152)
Recommended Standards
- (R)-12-((R)-7,8-difluoro-6,11-dihydrodibenzo[b,e]selenepin-11-yl)-7-hydroxy-3,4,12,12a-tetrahydro-1H-[1,4]oxazino[3,4-c]pyrido[2,1-f][1,2,4]triazine-6,8-dione (CAS CATO-C3D-263281)
- Alectinib Impurity 76 (CAS CATO-C4X-283676)
- Bortezomib D-Mannitol Ester (CAS 444576-08-3)
- ((2R,3R,5R)-5-(4-Amino-2-oxopyrimidin-1(2H)-yl)-4,4-difluoro-3-hydroxytetrahydrofuran-2-yl)methyl phenyl (5,5-dimethyl-2-oxotetrahydrofuran-3-yl)phosphoramidate (CAS 1638215-68-5)
- Sitagliptin Impurity 130 (CAS CATO-C4X-1144130)
- Paclitaxel EP Impurity Q (CAS 502626-06-4)
- Alectinib Impurity 32 (CAS CATO-C4X-283632)
- 1,3-Dioxaspiro[4.5]decan-4-one (CAS 27032-96-8)
- Olopatadine-d3 Hydrochloride (CAS 1331635-21-2)
- Ethyl 8-aminoimidazo[1,2-a]pyridine-2-carboxylate (CAS 129912-07-8)
- (R,Z)-Cyclooct-2-en-1-ol (CAS 62210-83-7)
- Ethyl 2-((10-cyanopyrido[1,2-a]indol-3-yl)oxy)acetate (CAS 478081-20-8)
- (4-Bromo-6-(difluoromethyl)-3-(trifluoromethyl)pyridin-2-yl)methanol (CAS 1805260-99-4)
- Semaglutide impurity 45 (CAS CATO-C4X-222645)
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