Cefepime Impurity 32 CAS CATO-C4X-119332
| CAS No. | CATO-C4X-119332 |
| Molecular Formula | C25H23N7O9S3 |
| Molecular Weight | 661.69 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 Cefepime Impurity 32 (CAS CATO-C4X-119332), a pharmacopoeial impurity reference standard (molecular formula C25H23N7O9S3, MW 661.69 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Cefepime Impurity 32 (C25H23N7O9S3) 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 18.0, corresponding to approximately 18 ring(s) or double-bond equivalent(s). With a molecular weight of 661.69 g/mol, it falls into the high-molecular-weight range. 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 | C25H23N7O9S3 |
| Molecular Weight | 661.69 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) | 18.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 7 |
| Sulfur Atoms | 3 |
Related Cefepime Standards
- Cefepime Impurity 16 (CAS CATO-C4X-119316)
- Cefepime EP Impurity B (CAS CATO-C4X-11932)
- Cefepime EP Impurity B (CAS 2923899-40-3)
- Cefepime Impurity 30 (CAS CATO-C4X-119330)
- Cefepime Impurity 41 (CAS CATO-C4X-119341)
- Cefepime Impurity 25 (CAS CATO-C4X-119325)
- Cefepime Impurity 38 (CAS CATO-C4X-119338)
- Cefepime EP Impurity F (CAS CATO-C4X-11936)
Recommended Standards
- Cefixime Impurity 30 (CAS CATO-C4X-113930)
- Suc-Ala-Ala-Pro-Phe-AMC (CAS 88467-45-2)
- Cefixime Impurity 18 (CAS CATO-C4X-113918)
- Z-Phe-Leu-Glu-pNA (CAS 104634-10-8)
- Carfilzomib Impurity 54 (CAS 1809093-03-5)
- Dabigatran Impurity 131 Hydrochloride (CAS 211914-50-0)
- Naproxen Impurity 51 (CAS CATO-C4X-170851)
- 2-((Pyridin-3-ylmethyl)amino)nicotinonitrile (CAS 906214-79-7)
- 2-(4-Fluoro-1-benzofuran-7-yl)acetonitrile (CAS 555154-97-7)
- 4-(2-(3-Methyl-5-(1,1,2,2-tetrafluoroethyl)-1H-pyrazol-1-yl)thiazol-4-yl)benzene-1,2-diol (CAS 75013-45-5)
- H-Asp(OtBu)-OMe · HCl (CAS 2673-19-0)
- (R)-2-Amino-3,3-difluoropropan-1-ol hydrochloride (CAS 2055849-13-1)
- 5-Amino-1-(4-bromophenyl)-1h-pyrazole-4-carboxylic acid (CAS 438243-87-9)
- Des-Gly34-Tirzepatide (CAS CATO-CPTD788940)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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