Cefdinir Impurity 42 CAS CATO-C4X-121042
| CAS No. | CATO-C4X-121042 |
| Molecular Formula | C28H24N10O9S4 |
| Molecular Weight | 772.81 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.
As a process- or degradation-related impurity, Cefdinir Impurity 42 (CAS CATO-C4X-121042, C28H24N10O9S4) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Cefdinir Impurity 42 is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 772.81 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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 | C28H24N10O9S4 |
| Molecular Weight | 772.81 g/mol |
| Purity | >95% |
| 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) | 22.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 10 |
| Sulfur Atoms | 4 |
Related Cefdinir Standards
- Cefdinir dimer (CAS CATO-C4X-121050)
- Cefdinir Impurity 82 (CAS 2489663-67-2)
- Cefdinir Impurity 98 (CAS CATO-C4X-121098)
- Cefdinir Impurity 41 (CAS CATO-C4X-121041)
- Cefdinir Impurity 46 (CAS CATO-C4X-121046)
- Cefdinir Impurity 47 (CAS CATO-C4X-121047)
- Cefdinir Impurity 48 (CAS CATO-C4X-121048)
- Cefdinir Impurity 58 (CAS CATO-C4X-121058)
Recommended Standards
- 2'-Fluoro-5'-O-DMT-2'-deoxyinosine-3'-CE-phosphoramidite (CAS 2245842-16-2)
- (2R,3S,5R)-2-((Bis(4-methoxyphenyl)(phenyl)methoxy)methyl)-5-(2-fluoro-6-(4-nitrophenethoxy)-9H-purin-9-yl)tetrahydrofuran-3-yl (2-cyanoethyl) diisopropylphosphoramidite (CAS 163668-79-9)
- DMTr-LNA-5MeU-3-CED-phosphoramidite (CAS 206055-75-6)
- Upadacitinib Impurity 216 (CAS CATO-C4X-2405216)
- Diltiazem Impurity 9 (CAS 116050-35-2)
- Mirabegron Impurity 15 (CAS CATO-C4X-103215)
- Thioridazine Impurity 1 (CAS 7643-08-5)
- 1-Phenyl-2,3-dihydroquinazoline-4(1H)-thione (CAS 90070-87-4)
- (8-Methoxy-2,3-dihydrobenzo[b][1,4]dioxin-5-yl)boronic acid (CAS 444108-40-1)
- 1-(3-(tert-Butyl)-1-(3-(hydroxymethyl)phenyl)-1H-pyrazol-5-yl)-3-(4-chlorophenyl)urea (CAS 725685-98-3)
- N2-(tert-butyl)-6-chloro-N4-methyl-1,3,5-triazine-2,4-diamine (CAS 34333-27-2)
- Ethyl 4-amino-2-fluoronicotinate (CAS 1805693-29-1)
- 2-(Sec-butylthio)-1-(2-fluorophenyl)ethan-1-one (CAS 1154194-65-6)
- CGMP Dependent Kinase Inhibitor Peptide (CAS 82801-73-8)
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