Cefepime Impurity 29 CAS 110-56-5
| CAS No. | 110-56-5 |
| Molecular Formula | C4H8Cl2 |
| Molecular Weight | 127.01 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
As a process- or degradation-related impurity, Cefepime Impurity 29 (CAS 110-56-5, C4H8Cl2) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Structurally, Cefepime Impurity 29 (C4H8Cl2) contains chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 0.0, corresponding to approximately 0 ring(s) or double-bond equivalent(s). With a molecular weight of 127.01 g/mol, it falls into the low-molecular-weight range. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
As a certified reference material (CRM), Cefepime Impurity 29 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 | C4H8Cl2 |
| Molecular Weight | 127.01 g/mol |
| Purity | >95% |
| Storage | Store at 2-8°C, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO |
| Stability | Stable under recommended storage conditions |
| Degree of Unsaturation (DBE) | 0.0 |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
Related Cefepime Standards
- Cefepime Impurity 1 (CAS 120-94-5)
- Cefepime EP Impurity D (CAS 65872-41-5)
- Cefepime Dihydrochloride Monohydrate EP Impurity C (CAS CATO-C4X-135863)
- Cefepime Impurity C08 (CAS 51813-38-8)
- Cefepime EP Impurity E (CAS 110026-16-9)
- Cefepime EP Impurity D Potassium Salt (CAS 112097-97-9)
- Cefepime Impurity C56 (CAS 113703-50-7)
- Cefepime EP Impurity D Sodium Salt (CAS 78172-35-7)
Recommended Standards
- 1,2-Dichloro-2-methylpropane (CAS 594-37-6)
- 1,2-Dichlorobutane (CAS 616-21-6)
- 616-21-7 45N8M9T967 1,2-Dichlorobutane Butane, 1,2-dichloro- EINECS 210-469-5 HSDB 5717 NSC 93880 UNII-45N8M9T967 (CAS 616-21-7)
- 2-Bromopropane-1,1,1,2-d4 (CAS 1219799-22-0)
- Epinephrine Impurity 21 (CAS 16899-83-5)
- Cisatracurium Besilate EP Impurity F Benzenesulfonate (CAS 1100676-16-1)
- Tryptophan EP Impurity C (CAS 2922-83-0)
- 2-Phenyl[1,3]oxazolo[5,4-b]pyridine-6-carboxylic acid (CAS 927801-31-8)
- [2-(4-Methoxyphenyl)-2-oxoethoxy]acetic acid (CAS 18801-06-4)
- 3-(4-Methoxyphenyl)thiophene-2-carboxylic acid (CAS 91368-67-1)
- 2,2-dimethyl-N-(3-trimethylsilyl-4-pyridinyl)propanamide 2,2-dimethyl-N-(3-trimethylsilylpyridin-4-yl)propanamide 86847-70-3 A841847 (CAS 86847-70-3)
- 4-Fluoro-2-isopropyl-6-methylaniline (CAS 121286-45-1)
- Methyl 2-(3-bromobenzamido)benzoate (CAS 67836-48-0)
- (Leu31,Pro34)-Peptide YY (human) trifluoroacetate salt (CAS 179986-95-9)
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