Cefamandole Impurity 7 CAS CATO-C4X-12217
| CAS No. | CATO-C4X-12217 |
| Molecular Formula | C20H24N4O10S2 |
| Molecular Weight | 544.56 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.
Cefamandole Impurity 7 (CAS CATO-C4X-12217) is a certified pharmaceutical impurity reference standard with the molecular formula C20H24N4O10S2 and a molecular weight of 544.56 g/mol.
Structurally, Cefamandole Impurity 7 (C20H24N4O10S2) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 11.0, corresponding to approximately 11 ring(s) or double-bond equivalent(s). With a molecular weight of 544.56 g/mol, it falls into the moderately-high-molecular-weight range. 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).
As a certified reference material (CRM), Cefamandole Impurity 7 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 | C20H24N4O10S2 |
| Molecular Weight | 544.56 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 |
| Degree of Unsaturation (DBE) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 2 |
Related Cefamandole Standards
- Cefamandole Impurity 32 (CAS CATO-C4X-122132)
- Cefamandole Impurity 17 (CAS CATO-C4X-122117)
- Cefamandole Impurity 9 (CAS CATO-C4X-12219)
- Cefamandole Oxide Impurity 15 (CAS CATO-C4X-122115)
- Cefamandole EP Impurity C (CAS 36922-15-3)
- Cefamandole Impurity 12 (CAS CATO-C4X-122112)
- Cefamandole Impurity 23 (CAS CATO-C4X-122123)
- Cefamandole Impurity 24 (CAS CATO-C4X-122124)
Recommended Standards
- 6'-(Diethylamino)-2'-[Methyl[3-(Trifluoromethyl)Phenyl]Amino]-Spiro[Isobenzofuran-1(3H),9'-[9H]Xanthen]-3-One (CAS 78923-50-9)
- Vilaprisan (CAS 1262108-14-4)
- Scytonemin (CAS 152075-98-4)
- N-{3-cyano-4H,5H,6H-cyclopenta[b]thiophen-2-yl}-2-{[3-cyano-6-(3,4-dimethoxyphenyl)-4-(trifluoromethyl)pyridin-2-yl]sulfanyl}acetamide (CAS 625369-48-4)
- Dapoxetine Impurity 96 (CAS CATO-C4X-143996)
- Palbociclib Impurity 188 (CAS CATO-C4X-1125188)
- Lasmiditan Impurity 19 (CAS 1903-67-9)
- 2-Phenoxypropiophenone (CAS 6640-19-3)
- 3-(Trifluoromethoxy)aniline (CAS 1535-73-5)
- 2-(Pyridin-4-yl)thiazole-4-carboxamide (CAS 89401-57-0)
- 3-Chloro-6-isopropyl-5,6,7,8-tetrahydropyrido[4,3-c]pyridazine (CAS 1483917-61-8)
- 5,6,7-Trimethyl-1,8-naphthyridine-2-carbonitrile (CAS 1557083-20-1)
- 5-Methyl-7H-pyrrolo[2,3-d]pyrimidine-4-carbonitrile (CAS 1638767-62-0)
- Peptide Impurity 64 (CAS CATO-CPTD788964)
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