Cefuroxime Axetil EP Impurity B CAS 97232-96-7
| CAS No. | 97232-96-7 |
| Molecular Formula | C20H22N4O10S |
| Molecular Weight | 510.47 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 510.47 g/mol gives Cefuroxime Axetil EP Impurity B distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Cefuroxime Axetil EP Impurity B (CAS 97232-96-7) is a certified pharmaceutical impurity reference standard with the molecular formula C20H22N4O10S and a molecular weight of 510.47 g/mol.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Cefuroxime Axetil EP Impurity B is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 510.47 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).
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 manufactures Cefuroxime Axetil EP Impurity B under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C20H22N4O10S |
| Molecular Weight | 510.47 g/mol |
| Purity | >90% |
| 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) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1984 |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Cefuroxime Standards
- Cefuroxime Axetil (CAS 64544-07-6)
- Cefuroxime Axetil EP Impurity A (CAS 123458-61-7)
- Cefuroxime Axetil Impurity 10 (CAS 64599-29-7)
- Cefuroxime Axetil Impurity 9 (CAS CATO-C4X-14369)
- Cefuroxime Impurity 59 (CAS CATO-C4X-124559)
- Cefuroxime Impurity 76 (CAS CATO-C4X-124576)
- Cefuroxime Impurity 71 (CAS CATO-C4X-124571)
- Cefuroxime Impurity 84 (CAS CATO-C4X-124584)
Recommended Standards
- 3,3'-Bis(3,5-difluorophenyl)-[1,1'-binaphthalene]-2,2'-diol (CAS 1706439-53-3)
- Defactinib (CAS 1073154-85-4)
- Methyl 2-methyl-5-((3-nitro-N-(phenoxycarbonyl)phenyl)sulfonamido)benzofuran-3-carboxylate (CAS 448213-39-6)
- 8-O-4-Hydroxycinnamoylharpagide (CAS 133645-37-1)
- Tenofovir alafenamide Impurity 51 (CAS 2126010-02-2(Free Base))
- Dapagliflozin Impurity 164 (CAS CATO-C4X-1138164)
- Bosentan Impurity 22 (CAS CATO-C4X-156422)
- 5-(2-Propoxyethyl)-1,3,4-thiadiazol-2-amine (CAS 299937-61-4)
- 4-Chloro-6-isopropoxypyrimidin-2-amine (CAS 89728-45-0)
- Leuprorelin EP Impurity D 2*Trifluoroacetic acid (CAS 1926163-25-8 (free base))
- (3R,4S)-4-phenyl-3-((triethylsilyl)oxy)azetidin-2-one (CAS 661489-72-1)
- 8-Amino-2-bromo-7-methyl-3-phenyl-5H-thiazolo[3,2-a]pyridin-5-one (CAS 2387600-65-7)
- (S)-2-Ethynylpyrrolidine-1-sulfonamide (CAS 1108658-67-8)
- Semaglutide impurity 78 (CAS CATO-C4X-222678)
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