Etoposide EP Impurity G CAS CATO-C4X-20247
| CAS No. | CATO-C4X-20247 |
| Molecular Formula | C39H38O17 |
| Molecular Weight | 778.71 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 778.71 g/mol gives Etoposide EP Impurity G distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Etoposide EP Impurity G (CAS CATO-C4X-20247), a pharmacopoeial impurity reference standard (molecular formula C39H38O17, MW 778.71 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C39H38O17, Etoposide EP Impurity G contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 778.71 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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.
CATO manufactures Etoposide EP Impurity G 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 | C39H38O17 |
| Molecular Weight | 778.71 g/mol |
| Purity | >90% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 21.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
Related Etoposide Standards
- Etoposide Impurity 41 (CAS CATO-C4X-202441)
- Etoposide EP Impurity K (CAS CATO-C4X-202411)
- Etoposide D-glucuronide (CAS 100007-55-4)
- Etoposide EP Impurity O (CAS 260974-95-6)
- Etoposide Impurity 39 (CAS CATO-C4X-202439)
- Etoposide impurity 20 (CAS CATO-C4X-202420)
- Etoposide Impurity 32 (CAS CATO-C4X-202432)
- Etoposide Impurity 37 (CAS CATO-C4X-202437)
Recommended Standards
- Methyltetrazine-PEG8-PFP ester (CAS 2353409-49-9)
- 80396-57-2 NSC353057 DTXSID80419570 (CAS 80396-57-2)
- Methotrexate Impurity 45 (CAS CATO-C4X-115445)
- Emtricitabine Tenofovir Disoproxil Dimer (CAS CATO-C4X-123218)
- Bilastine impurity 109 (CAS CATO-C4X-2253109)
- Teriparatide Impurity 5 (CAS CATO-C4X-21855)
- Palbociclib Impurity 184 (CAS CATO-C4X-1125184)
- 5-Chloro-2-methylpyridine hydrochloride (CAS 1881292-44-9)
- (1S,2S)-2-methylcyclopropanecarboxylic acid (CAS 14590-52-4)
- 9-Butyl-8-((3,4,5-trimethoxyphenyl)sulfonyl)-9H-purin-6-amine (CAS 827302-63-6)
- 1-Chloro-8-nitroanthracene-9,10-dione (CAS 129-38-4)
- 1-[4-(prop-2-yn-1-yloxy)phenyl]ethan-1-one (CAS 34264-14-7)
- 2-((4-Chlorophenyl)thio)-8-methylquinoline-3-carbaldehyde (CAS 1431728-47-0)
- Galanin-Like Peptide (human) trifluoroacetate salt (CAS 245114-99-2)
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