Cefotaxime Impurity 23 CAS CATO-C4X-120123
| CAS No. | CATO-C4X-120123 |
| Molecular Formula | C21H18N6O5S4 |
| Molecular Weight | 562.66 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Cefotaxime Impurity 23 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.
CATO supplies Cefotaxime Impurity 23 (CAS CATO-C4X-120123), a pharmacopoeial impurity reference standard (molecular formula C21H18N6O5S4, MW 562.66 g/mol) used for the identification and quantification of trace impurities in APIs.
Owing to a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, Cefotaxime Impurity 23 is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 562.66 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
Physical & Chemical Properties
| Molecular Formula | C21H18N6O5S4 |
| Molecular Weight | 562.66 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) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 4 |
Related Cefotaxime Standards
- Cefotaxime Impurity 75 (CAS CATO-C4X-120175)
- Cefotaxime Impurity 41 (CAS CATO-C4X-121241)
- Cefotaxime Impurity 38 (CAS CATO-C4X-120138)
- Cefotaxime EP Impurity G (CAS 2489535-06-8)
- Cefotaxime Impurity 86 (CAS CATO-C4X-120186)
- Cefotaxime EP Impurity C (CAS 66403-32-5)
- Cefotaxime Bromoacetyl analog (CAS 83305-12-8)
- Cefotaxime EP Impurity D Sodium Salt (CAS 65715-12-0)
Recommended Standards
- 4-Hydroxy-2-oxo-N-[4-(triphenylmethyl)phenyl]-1-azatricyclo[7.3.1.0^{5,13}]trideca-3,5(13),6,8-tetraene-3-carboxamide (CAS 303987-30-6)
- Protoporphyrin IX (CAS 553-12-8)
- 3',6'-Bis(diethylamino)-2-(4-nitrophenyl)spiro[isoindoline-1,9'-xanthen]-3-one (CAS 29199-09-5)
- 1,2,3,7,8-Pentabromodibenzofuran (CAS 107555-93-1)
- Finerenone Impurity 85 (CAS CATO-C4X-288085)
- Racecadotril Impurity 15 (CAS 80-48-8)
- Clopidogrel Impurity 36 HCl (CAS 1346605-15-9 (free base))
- (Des-Bromo)-Neuropeptide B (1-23) (human) (CAS 434897-64-0)
- 4-(4-chlorophenyl)-2-(pyrrolidin-2-yl)-1H-imidazole dihydrochloride (CAS 1315366-85-8)
- N-((1-Methyl-1H-pyrazol-5-yl)methyl)-3-morpholinopropan-1-amine dihydrochloride (CAS 1856035-76-1)
- 2-[(4-aminophenyl)sulfanyl]propanoic acid hydrochloride (CAS 1803584-33-9)
- 1142211-66-2 9434AC C22H27N3O3 [{2-[4-(2,5-Dimethylphenyl)piperazin-1-yl]-2-oxoethyl}(phenyl)amino]acetic acid (CAS 1142211-66-2)
- ({[1,1'-Biphenyl]-4-yl}methyl)(butan-2-yl)amine (CAS 893574-94-2)
- Semaglutide impurity 95 (CAS CATO-C4X-222695)
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