Ceftazidime Impurity 76 CAS CATO-C4X-121276
| CAS No. | CATO-C4X-121276 |
| Molecular Formula | C58H63Cl2N13O20S4 |
| Molecular Weight | 1461.36 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including Ceftazidime Impurity 76.
CATO supplies Ceftazidime Impurity 76 (CAS CATO-C4X-121276), a pharmacopoeial impurity reference standard (molecular formula C58H63Cl2N13O20S4, MW 1461.36 g/mol) used for the identification and quantification of trace impurities in APIs.
Structurally, Ceftazidime Impurity 76 (C58H63Cl2N13O20S4) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 33.0, corresponding to approximately 33 ring(s) or double-bond equivalent(s). With a molecular weight of 1461.36 g/mol, it falls into the high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
CATO manufactures Ceftazidime Impurity 76 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 | C58H63Cl2N13O20S4 |
| Molecular Weight | 1461.36 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 33.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 13 |
| Sulfur Atoms | 4 |
Related Ceftazidime Standards
- Ceftazidime Impurity 77 (CAS CATO-C4X-121277)
- Ceftazidime trimer 1 (CAS CATO-C4X-121270)
- Ceftazidime trimer 2 (CAS CATO-C4X-121271)
- Ceftazidime trimer 3 (CAS CATO-C4X-121272)
- Ceftazidime Impurity 63 (CAS CATO-C4X-121263)
- Ceftazidime impurity 115 (CAS CATO-C4X-1212115)
- Ceftazidime impurity 122 (CAS CATO-C4X-1212122)
- Ceftazidime dimer 1 (CAS CATO-C4X-121264)
Recommended Standards
- [(2S)-2-[[(2S)-6-amino-2-[[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[2-[4-[[[4-[(2,5-dioxopyrrol-1-yl)methyl]cyclohexanecarbonyl]amino]methyl]triazol-1-yl]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethoxy]ethylamino]-2-oxo-ethoxy]acetyl]amino]hexanoyl]amino]-3-methyl-butyl] [(19S)-10,19-diethyl-7-hydroxy-14,18-dioxo-17-oxa-3,13-diazapentacyclo[11.8.0.0²¹¹.0⁴⁹.0¹⁵²º]henicosa-1(21),2,4,6,8,10,15(20)-heptaen-19-yl] carbonate (CAS 1225189-26-3)
- Alisporivir Intermediate-1DISCONTINUED (CAS 882506-05-0)
- 6-O-α-Maltosyl-β-cyclodextrin hydrate (CAS 104723-60-6)
- Vancomycin impurity 17 (CAS 250273-66-6)
- Flurbiprofen Impurity 28 (CAS CATO-C4X-144428)
- Atovaquone Impurity 6 (CAS CATO-C4X-15516)
- Iloprost Impurity 6 (CAS CATO-C4X-32026)
- 2-(4-Methyl-1-piperidinyl)isonicotinic acid (CAS 1019387-13-3)
- 2-(2-((tert-Tutoxycarbonyl)amino)thiazol-4-yl)-2,2-difluoroacetic acid (CAS 2225136-75-2)
- 4-Nitrophenyl Laurate (CAS 1956-11-2)
- 2-amino-5H-phenanthridin-6-one (CAS 78256-05-0)
- Isonicotinoyl chloride (CAS 14254-57-0)
- 5-(4-Bromophenyl)imidazolidine-2,4-dione (CAS 37944-78-8)
- Semaglutide impurity 71 (CAS CATO-C4X-222671)
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