Latamoxef Impurity 4 CAS 76945-69-2
| CAS No. | 76945-69-2 |
| Molecular Formula | C24H24N6O5S |
| Molecular Weight | 508.55 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
The molecular framework of Latamoxef Impurity 4 (C24H24N6O5S) is characterized by a flavonoid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
CATO supplies Latamoxef Impurity 4 (CAS 76945-69-2), a pharmacopoeial impurity reference standard (molecular formula C24H24N6O5S, MW 508.55 g/mol) used for the identification and quantification of trace impurities in APIs.
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.
As a certified reference material (CRM), Latamoxef Impurity 4 meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C24H24N6O5S |
| Molecular Weight | 508.55 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 |
| CAS Registry Year (est.) | 1978 |
| Nitrogen Atoms | 6 |
| Sulfur Atoms | 1 |
Related Latamoxef Standards
- Latamoxef Impurity 3 (CAS 66510-99-4)
- Latamoxef Impurity 27 (CAS CATO-C4X-179827)
- Latamoxef Impurity 19 (CAS CATO-C4X-179819)
- Latamoxef Impurity N1 (CAS 79120-38-0)
- Latamoxef Impurity 13 (CAS CATO-C4X-179813)
- Latamoxef Impurity 16 (CAS CATO-C4X-179816)
- Latamoxef Impurity 36 (CAS CATO-C4X-179836)
- Latamoxef Impurity 18 (CAS CATO-C4X-179818)
Recommended Standards
- Diflorasone Impurity 5 (CAS CATO-C4X-24805)
- Fluticasone Impurity 66 (CAS 185536-05-4)
- Difluprednate (CAS 23674-86-4)
- Fluticasone Impurity 59 (CAS CATO-C4X-165059)
- Lenvatinib Impurity 104 (CAS CATO-C4X-1140104)
- Pethidine Impurity N33 (CAS 50-13-5)
- Tenofovir disoproxil Impurity 94 (CAS 51260-39-0)
- 3-(Dibenzylamino)propanoic acid (CAS 19812-58-9)
- (4-Bromo-3-fluoro-5-methylphenyl)-dimethylamine (CAS 1242156-92-8)
- 4-Bromo-3-(difluoromethyl)-6-methylpyridine-2-methanol (CAS 1807023-55-7)
- Tolvaptan Impurity 72 (CAS CATO-C4X-195572)
- Benzenepropanoic acid, β-(aminomethyl)-4-fluoro-, (R)- (9CI) (CAS 741217-33-4)
- Z-Pro-D-Leu-D-Ala-NHOH (CAS 123984-15-6)
- Glucagon Monohydrochloride (CAS 28270-04-4)
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