Dicloxacillin CAS 3116-76-5
| CAS No. | 3116-76-5 |
| Molecular Formula | C19H17Cl2N3O5S |
| Molecular Weight | 470.32 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Dicloxacillin (CAS 3116-76-5), molecular formula C19H17Cl2N3O5S and molecular weight 470.32 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C19H17Cl2N3O5S, Dicloxacillin contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 470.32 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), Dicloxacillin 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 | C19H17Cl2N3O5S |
| Molecular Weight | 470.32 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Dicloxacillin Standards
- Dicloxacillin Impurity 4 (CAS CATO-C4X-16154)
- Dicloxacillin Impurity 7 (CAS CATO-C4X-16157)
- Dicloxacillin Impurity C34 (CAS 42947-69-3)
- Dicloxacillin EP Impurity A (CAS CATO-C4X-16151)
- Dicloxacillin EP Impurity B (CAS 1642576-88-2)
- Dicloxacillin Impurity 8 (CAS CATO-C4X-16158)
- Dicloxacillin Impurity 3 (CAS CATO-C4X-16153)
- Dicloxacillin Degradation Impurity (DCMICAA) (CAS 883225-99-8)
Recommended Standards
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- Rivaroxaban EP Impurity H (CAS 1770812-37-7)
- 4-Chloro-6-(4-fluorophenyl)-2-phenylpyrimidine-5-carbonitrile (CAS 477853-93-3)
- Spiro[isochromane-1,4'-piperidin]-3-one hydrochloride (CAS 173944-52-0)
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- 2-Chlorodibenzo[b,d]furan-3-amine (CAS 5833-88-5)
- (6S)-4-oxo-5-azaspiro[2.4]heptane-6-carboxylic acid (CAS 2102412-77-9)
- Ethyl 1,3-dimethyl-2,4-dioxo-1h,2h,3h,4h-pyrido[2,3-d]pyrimidine-7-carboxylate (CAS 1000932-33-1)
- 2-(2,3-Dimethoxyphenyl)-5,7-dimethyl-1H-benzo[d]imidazole (CAS 1548290-33-0)
- 6-methoxy-2,4-dimethylpyridine-3-carbaldehyde (CAS 819069-58-4)
- Dendroaspis Natriuretic Peptide (CAS 255721-52-9)
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