Cefadroxil USP Related Compound I CAS 147103-94-4
| CAS No. | 147103-94-4 |
| Molecular Formula | C16H17N3O5S |
| Molecular Weight | 363.39 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Based on its molecular formula C16H17N3O5S, Cefadroxil USP Related Compound I contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 363.39 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
As a process- or degradation-related impurity, Cefadroxil USP Related Compound I (CAS 147103-94-4, C16H17N3O5S) is essential for impurity profiling, related-substances testing, and forced-degradation studies in pharmaceutical development.
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 | C16H17N3O5S |
| Molecular Weight | 363.39 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 |
| CAS Registry Year (est.) | 1999 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Cefadroxil Standards
- Cefadroxil Impurity 19 (CAS CATO-C4X-122419)
- Cefadroxil EP Impurity D (CAS 144790-28-3)
- Cefadroxil Impurity 43 (CAS CATO-C4X-122443)
- Cefadroxil (CAS 50370-12-2)
- Cefadroxil Ethyl Homolog (CAS 2243976-70-5)
- R-Cefadroxil Sulfoxide (CAS CATO-C4X-122415)
- S-Cefadroxil Sulfoxide (CAS CATO-C4X-122416)
- Cefadroxil Impurity 25 (CAS CATO-C4X-122425)
Recommended Standards
- Emtricitabine Impurity 36 (CAS CATO-C4X-123236)
- Cefradine EP Impurity E (CAS 215172-75-1)
- Omeprazole Impurity 11 (CAS CATO-C4X-125511)
- N-[5-(3-Methylphenyl)-1,3,4-thiadiazol-2-yl]-2-oxo-2H-chromene-3-carboxamide (CAS 476459-92-4)
- Pristinamycin Impurity 1 (CAS 318498-76-9)
- Ascorbic Acid Impurity 2 (CAS CATO-C4X-31442)
- Baclofen impurity 17 (CAS 114703-75-2)
- N-benzylcyclopentanamine (CAS 15205-23-9)
- 5-Methyl-3-(pyrimidin-4-yl)isoxazole-4-carboxylic acid (CAS 1083424-22-9)
- 4-Amino-5-chloro-N,N-dimethylpyridine-3-sulfonamide (CAS 1352521-16-4)
- Propane-1,3-diyl dibenzoate (CAS 2451-86-7)
- 3-(2,4-Dioxo-3,4-dihydropyrimidin-1(2H)-yl)propanamide (CAS 89853-99-6)
- 2-[1-(2-Cyanophenyl)-1H-pyrrol-2-yl]-N,N-diethyl-2-oxoacetamide (CAS 866010-82-4)
- Semaglutide impurity 195 (CAS CATO-C4X-2226195)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com