Biapenem impurity 4 CAS CATO-C4X-22734
| CAS No. | CATO-C4X-22734 |
| Molecular Formula | C15H20N4O5S |
| Molecular Weight | 368.41 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.
Biapenem impurity 4 (CAS CATO-C4X-22734) is a certified pharmaceutical impurity reference standard with the molecular formula C15H20N4O5S and a molecular weight of 368.41 g/mol.
Biapenem impurity 4 (C15H20N4O5S) contains a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. It is notably hygroscopic, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
CATO manufactures Biapenem impurity 4 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 | C15H20N4O5S |
| Molecular Weight | 368.41 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 4 |
| Sulfur Atoms | 1 |
Related Biapenem Standards
- Biapenem impurity 1 (CAS CATO-C4X-22731)
- Biapenem Impurity 24 (CAS CATO-C4X-227324)
- Biapenem impurity 26 (CAS CATO-C4X-227326)
- Biapenem Impurity 34 (CAS CATO-C4X-227334)
- Biapenem impurity 16 (CAS CATO-C4X-227316)
- Biapenem impurity 27 (CAS CATO-C4X-227327)
- Biapenem impurity 5 (CAS CATO-C4X-22735)
- Biapenem-13C2,15N3 (CAS 120410-24-4 (unlabeled))
Recommended Standards
- Abrocitinib Nitroso Impurity 9 (CAS CATO-C4X-28849)
- Ethylfenacin (CAS 110882-80-9)
- 2-((Allyloxy)carbonyl)-8-(tert-butoxycarbonyl)-2,8-diazaspiro[4.5]Decane-3-carboxylic acid (CAS 1250991-77-5)
- (S)-2-((tert-butoxycarbonyl)amino)-3-((1-(4,4-dimethyl-2,6-dioxocyclohexylidene)ethyl)amino)propanoic acid (CAS 1263045-09-5)
- Tosufloxacin impurity 5 (CAS CATO-C4X-19765)
- Elobixibat Impurity 40 (CAS CATO-C4X-283840)
- Dabrafenib Impurity 12 (CAS CATO-C4X-303312)
- 1-Isopropyl-3-phenyl-1h-pyrazol-5-ol (CAS 948-64-1)
- (3,4-Dimethylphenyl)(3-nitrophenyl)methanone (CAS 42187-33-7)
- Hexabromo-Diphenyl Ether (CAS 446254-98-4)
- 2-(2-Oxoindolin-3-ylidene)malononitrile (CAS 6623-89-8)
- Hydantoin Impurity 31 (CAS 110932-42-8)
- MIL-88B(Fe) (CAS 1341134-01-7)
- Tirzepatide Impurity 58 (CAS CATO-C4X-324058)
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