Cefadroxil Impurity 25 CAS CATO-C4X-122425
| CAS No. | CATO-C4X-122425 |
| Molecular Formula | C16H17N3O6S |
| Molecular Weight | 379.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Cefadroxil Impurity 25.
Cefadroxil Impurity 25 (CAS CATO-C4X-122425) is a certified pharmaceutical impurity reference standard with the molecular formula C16H17N3O6S and a molecular weight of 379.39 g/mol.
The molecular framework of Cefadroxil Impurity 25 (C16H17N3O6S) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
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 | C16H17N3O6S |
| Molecular Weight | 379.39 g/mol |
| Purity | 97%+ |
| 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 |
| Degree of Unsaturation (DBE) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Cefadroxil Standards
- R-Cefadroxil Sulfoxide (CAS CATO-C4X-122415)
- S-Cefadroxil Sulfoxide (CAS CATO-C4X-122416)
- Cefadroxil Sulfoxide(RS) (CAS 182290-77-3)
- Cefadroxil Ethyl Homolog (CAS 2243976-70-5)
- Cefadroxil Impurity 38 (CAS CATO-C4X-122438)
- Cefadroxil Impurity 46 (CAS CATO-C4X-122446)
- Cefadroxil Impurity 19 (CAS CATO-C4X-122419)
- Cefadroxil EP Impurity D (CAS 144790-28-3)
Recommended Standards
- Cefmetazole Impurity 17 (CAS CATO-C4X-150717)
- JLC76XF39H 54398-03-7 S-Pyruvylglutathione Glycine, N-(S-(1,2-dioxopropyl)-N-L-gamma-glutamyl-L-cysteinyl)- S-Pyruvoylglutathione UNII-JLC76XF39H (CAS 54398-03-7)
- Merafloxacin (CAS 110013-21-3)
- NVP-HSP 990 (CAS 934343-74-5)
- Tadalafil Impurity N23 (CAS 951661-84-0)
- Etizolam Impurity 7 (CAS 91663-72-8)
- Cefditoren Impurity 59 (CAS CATO-C4X-135859)
- 1-[2-(4-bromophenoxy)ethyl]-3-methylpyrrolidine (CAS 1250736-66-3)
- (S)-2-(4-(((9H-fluoren-9-yl)methoxy)carbonyl)-3-methyl-2-oxopiperazin-1-yl)acetic acid (CAS 959574-94-8)
- 2-Bromo-5-methylbenzenesulfonic acid (CAS 56919-22-3)
- 5-(3-(Aminomethyl)-1,2,4-oxadiazol-5-yl)pyrrolidin-2-one hydrochloride (CAS 1674389-96-8)
- (S)-1-[(Pyridin-4-yl)carbonyl]pyrrolidin-3-amine dihydrochloride (CAS 1349700-01-1)
- 2-(2-Chloro-6-fluorophenyl)ethanimidamide hydrochloride (CAS 158351-86-1)
- Gastric Inhibitory Polypeptide (1-30) amide (porcine) (CAS 134846-93-8)
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