Etoposide EP Impurity A CAS 124151-67-3
| CAS No. | 124151-67-3 |
| Molecular Formula | C37H38O15 |
| Molecular Weight | 722.69 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Etoposide EP Impurity A 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 Etoposide EP Impurity A (CAS 124151-67-3), a pharmacopoeial impurity reference standard (molecular formula C37H38O15, MW 722.69 g/mol) used for the identification and quantification of trace impurities in APIs.
Based on its molecular formula C37H38O15, Etoposide EP Impurity A 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 722.69 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).
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 | C37H38O15 |
| Molecular Weight | 722.69 g/mol |
| Purity | 97%+ |
| 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) | 19.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1992 |
Related Etoposide Standards
- Etoposide Impurity 40 (CAS CATO-C4X-202440)
- Etoposide EP Impurity F (CAS CATO-C4X-20246)
- Etoposide D-glucuronide (CAS 100007-55-4)
- Etoposide phosphate (CAS 117091-64-2)
- Etoposide Impurity 41 (CAS CATO-C4X-202441)
- Etoposide EP Impurity G (CAS CATO-C4X-20247)
- Etoposide EP Impurity K (CAS CATO-C4X-202411)
- Etoposide EP Impurity O (CAS 260974-95-6)
Recommended Standards
- 5,10,15,20-tetraphenyl-21<I>H</I>,23<I>H</I>-copper(II) (CAS 14172-91-9)
- Obicetrapib (CAS 866399-87-3)
- Mag-fura-2,am (CAS 130100-20-8)
- Raltegravir EP Impurity H (CAS 1391918-18-5)
- Baloxavir Marboxil Impurity 244 (CAS 2473028-59-8)
- Tedizolid Impurity 27 (CAS CATO-C4X-105427)
- Dorzagliatin Impurity N98 (CAS 1191996-10-7)
- 2-(2-Nitrophenoxy)ethan-1-ol (CAS 16365-25-6)
- 3-(4-Methoxyphenyl)-5,6,7,8-tetrahydroimidazo[1,2-a]pyridine (CAS 185107-53-3)
- 2-Bromothieno[3,2-c]pyridine (CAS 94226-20-7)
- N-(4-Fluorophenyl)-5-methyl-11-oxo-5H,5aH,6H,7H,8H,9H,11H-pyrido[2,1-b]quinazoline-3-carboxamide (CAS 1574583-79-1)
- 4-Chloro-2-iodobenzo[d]oxazole (CAS 1804187-07-2)
- 1-(3-((3-Chloropyrazin-2-yl)methyl)piperidin-1-yl)ethan-1-one (CAS 1316227-06-1)
- Galanin-Like Peptide (porcine) trifluoroacetate salt (CAS 245114-96-9)
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