Chlorzoxazone Impurity 5 CAS CATO-C4X-27775
| CAS No. | CATO-C4X-27775 |
| Molecular Formula | C14H7ClN2O4 |
| Molecular Weight | 302.67 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Chlorzoxazone Impurity 5 (CAS CATO-C4X-27775, C14H7ClN2O4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Chlorzoxazone Impurity 5 (C14H7ClN2O4) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 302.67 g/mol, it falls into the moderately-high-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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), Chlorzoxazone Impurity 5 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 | C14H7ClN2O4 |
| Molecular Weight | 302.67 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | >95% |
| Storage | Store at 2-8°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 | 2 |
Related Chlorzoxazone Standards
- Chlorzoxazone Impurity 4 (CAS CATO-C4X-27774)
- Chlorzoxazone Impurity 6 (CAS CATO-C4X-27776)
- Chlorzoxazone Impurity 3 (CAS CATO-C4X-27773)
- Chlorzoxazone Impurity N1 (CAS 57718-28-2)
- Chlorzoxazone-2-<SUP>13</SUP>C-3-<SUP>15</SUP>N-Hydroxy-<SUP>18</SUP>O (CAS 1173023-63-6)
- Chlorzoxazone-d3 (CAS 1185173-60-7)
- Chlorzoxazone (CAS 95-25-0)
- Chlorzoxazone USP Related Compound A (CAS 95-85-2)
Recommended Standards
- 2-Chloroinosine (CAS 13276-43-2)
- 6-Chloro-3'-(trifluoromethoxy)biphenyl-3-methanol (CAS 1261501-45-4)
- Isobutyl 4-chloro-3,5-dinitrobenzoate (CAS 58263-53-9)
- 4-Chloro-4'-(trifluoromethoxy)biphenyl-3-methanol (CAS 1261686-74-1)
- Empagliflozin Impurity 42 (CAS CATO-C4X-106542)
- Atorvastatin Calcium EP Impurity P (CAS 581772-29-4)
- Etizolam Impurity 20 (CAS 50508-61-7)
- 4-Fluoro-6-hydroxy-2,3-dihydro-1H-inden-1-one (CAS 1092347-58-4)
- (3,4-Dichlorophenyl)(3,5-dimethoxyphenyl)methanone (CAS 951892-36-7)
- (1S,3s)-3-(2,2,2-trifluoroethoxy)cyclobutan-1-ol (CAS 2329049-75-2)
- 5-Bromo-2-(piperidin-3-yl)-1H-benzo[d]imidazole (CAS 1184759-12-3)
- (Benzo[d][1,3]dioxol-5-yl(hydroxy)methyl)diphenylphosphine oxide (CAS 5255-64-1)
- Aprocitentan impurity 3 (CAS CATO-C4X-33553)
- Peptide Impurity 82 (CAS 10491-78-8)
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