Cefotaxime Impurity 17 CAS CATO-C4X-120117
| CAS No. | CATO-C4X-120117 |
| Molecular Formula | C15H19N5O6S2 |
| Molecular Weight | 429.47 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.
Cefotaxime Impurity 17 (CAS CATO-C4X-120117) is a certified pharmaceutical impurity reference standard with the molecular formula C15H19N5O6S2 and a molecular weight of 429.47 g/mol.
Cefotaxime Impurity 17 (C15H19N5O6S2) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C15H19N5O6S2 |
| Molecular Weight | 429.47 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 5 |
| Sulfur Atoms | 2 |
Related Cefotaxime Standards
- Cefotaxime Impurity 66 (CAS CATO-C4X-120166)
- Cefotaxime Impurity 87 (CAS CATO-C4X-120187)
- Cefotaxime Impurity 10 (CAS CATO-C4X-120110)
- Cefotaxime Impurity 11 (CAS CATO-C4X-120111)
- Cefotaxime Impurity 65 (CAS CATO-C4X-120165)
- Cefotaxime EP Impurity B (CAS 66340-28-1)
- Cefotaxime Impurity 21 (CAS CATO-C4X-120121)
- Cefotaxime Impurity 24 (CAS CATO-C4X-120124)
Recommended Standards
- Azilsartan Impurity 5 (CAS 147404-76-0)
- Ceftizoxime Open-ring Ethyl Ester (CAS CATO-C4X-179332)
- Nivasorexant (CAS 1435480-40-2)
- （E）-Ceftizoxime Open-ring Ethyl Ester (CAS CATO-C4X-179364)
- Cefamandole EP Impurity C (CAS 36922-15-3)
- Rivaroxaban Impurity 121 (CAS 1855920-51-2)
- Trifluridine Impurity 4 (CAS 4449-28-9)
- 2-Amino-N-((3-isopropyl-1,2,4-oxadiazol-5-yl)methyl)acetamide hydrochloride (CAS 1435804-45-7)
- Torilin (CAS 13018-10-5)
- 2-Azido-1-(4-hydroxyphenyl)ethan-1-one (CAS 169315-44-0)
- 3-(5-(Morpholinomethyl)furan-2-yl)aniline (CAS 89260-56-0)
- 2-Methyl-1H-naphtho[1,2-d]imidazole (CAS 1792-42-3)
- 1-(3-Chloro-5-fluorophenyl)-3-(4-fluorophenyl)propan-1-one (CAS 898768-64-4)
- Peptide YY (3-36) (canine, mouse, porcine, rat) trifluoroacetate salt (CAS 126339-09-1)
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