Ceftriaxone Impurity 20 CAS CATO-C4X-116320
| CAS No. | CATO-C4X-116320 |
| Molecular Formula | C18H20N8O8S3 |
| Molecular Weight | 572.60 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.
Ceftriaxone Impurity 20 (CAS CATO-C4X-116320) is a certified pharmaceutical impurity reference standard with the molecular formula C18H20N8O8S3 and a molecular weight of 572.60 g/mol.
Structurally, Ceftriaxone Impurity 20 (C18H20N8O8S3) 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 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 572.60 g/mol, it falls into the moderately-high-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
CATO manufactures Ceftriaxone Impurity 20 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 | C18H20N8O8S3 |
| Molecular Weight | 572.60 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Nitrogen Atoms | 8 |
| Sulfur Atoms | 3 |
Related Ceftriaxone Standards
- Ceftriaxone Impurity 21 (CAS CATO-C4X-116321)
- Ceftriaxone Impurity 32 (CAS CATO-C4X-116332)
- Ceftriaxone Oxide Impurity (CAS 97466-28-9)
- Ceftriaxone Impurity 27 (CAS CATO-C4X-116327)
- Ceftriaxone Impurity 25 (CAS CATO-C4X-116325)
- Ceftriaxone EP Impurity A (CAS 92143-31-2)
- Ceftriaxone Impurity 11 (CAS CATO-C4X-116311)
- Δ3-Ceftriaxone Isomer Impurity (CAS CATO-C4X-116314)
Recommended Standards
- Ezetimibe Impurity 107 (CAS 2363086-22-8)
- Ezetimibe Impurity 105 (CAS 1296129-16-2)
- BMS-986142 (CAS 1643368-58-4)
- Ipragliflozin Impurity N3 (CAS 1034305-21-9)
- Orforglipron impurity 131 (CAS CATO-C4X-3234131)
- Phentolamine Impurity 17 (CAS 57182-48-6)
- Levamisole EP Impurity A (CAS CATO-C4X-27924)
- 2-(4-(Benzylamino)phenyl)acetic acid (CAS 39718-80-4)
- 8-Fluoro-2-(trifluoromethyl)quinoline (CAS 1624260-30-5)
- 2-(5-Aminoisoxazol-3-yl)butan-2-ol (CAS 134965-78-9)
- lithium(1+) ion 5-methylimidazo[1,2-a]pyridine-3-carboxylate (CAS 1909314-36-8)
- 5-Amino-7-fluorobenzo[d]oxazol-2-ol (CAS 1267629-05-9)
- 6-(bromomethyl)-1H-indazole (CAS 152626-91-0)
- Semaglutide impurity 274 (CAS CATO-C4X-2226274)
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