Cefprozil Impurity 52 CAS CATO-C4X-149252
| CAS No. | CATO-C4X-149252 |
| Molecular Formula | C18H21N3O6S |
| Molecular Weight | 407.44 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.
CATO supplies Cefprozil Impurity 52 (CAS CATO-C4X-149252), a pharmacopoeial impurity reference standard (molecular formula C18H21N3O6S, MW 407.44 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Cefprozil Impurity 52 (C18H21N3O6S) 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 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 407.44 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), Cefprozil Impurity 52 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 | C18H21N3O6S |
| Molecular Weight | 407.44 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related Cefprozil Standards
- Cefprozil Impurity 61 (CAS CATO-C4X-149261)
- Cefprozil EP Impurity G (CAS CATO-C4X-14927)
- Cefprozil EP Impurity I (CAS CATO-C4X-14929)
- Cefprozil Impurity 36 (CAS CATO-C4X-149236)
- Cefprozil Impurity 37 (CAS CATO-C4X-149237)
- Cefprozil Impurity 12 (CAS CATO-C4X-149212)
- Cefprozil Impurity N1(Z-Cefprozil) (CAS 121412-77-9)
- Cefprozil (CAS 92665-29-7)
Recommended Standards
- Linezolid Impurity 27 (CAS CATO-C4X-107327)
- ((3aR,6aS)-5-(4,6-dimethylpyrimidin-2-yl)hexahydropyrrolo[3,4-c]pyrrol-2(1H)-yl)(2-fluoro-6-(2H-1,2,3-triazol-2-yl)phenyl)methanone (CAS 1452539-75-1)
- N-(4-methoxyphenyl)-1-(phenylsulfonyl)-1H-pyrrolo[2,3-b]pyridine-2-carboxamide (CAS 477872-22-3)
- Methyl 3-(4-((3-fluorophenyl)sulfonamido)phenoxy)thiophene-2-carboxylate (CAS 900015-22-7)
- Abiraterone Impurity 44 (CAS CATO-C4X-107044)
- Ilaprazole Impurity 87 (CAS CATO-C4X-113087)
- Pazopanib Impurity 63 (CAS 2369664-23-1)
- 2-Bromo-N-(3-methoxypropyl)benzamide (CAS 349092-66-6)
- 2H-Imidazo[4,5-d]oxazolo[5,4-b]pyridine (CAS 807364-33-6)
- 1-(4-(4-Bromophenyl)thiazol-2-yl)piperidine-4-carboxylic acid (CAS 296899-02-0)
- 4,5-dimethyl-1H-pyrrole-2-carboxylic acid (CAS 4868-31-9)
- n-(1-(Pyridin-2-yl)ethyl)propan-1-amine (CAS 774493-90-2)
- 5-[(2-Hydroxyphenyl)amino]-5-oxopentanoic acid (CAS 477307-73-6)
- Semaglutide impurity 274 (CAS CATO-C4X-2226274)
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