Etoposide EP Impurity R CAS 149839-65-6
Purity 97%+In StockPharmacopoeial Impurity Standards
| CAS No. | 149839-65-6 |
| Molecular Formula | C50H50O20 |
| Molecular Weight | 970.92 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Etoposide EP Impurity R (CAS 149839-65-6) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C50H50O20. Molecular weight: 970.92 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C50H50O20 |
| Molecular Weight | 970.92 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) | 26.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1999 |
Related Etoposide Standards
- Etoposide EP Impurity N (CAS CATO-C4X-202414)
- Etoposide Impurity 28 (CAS CATO-C4X-202428)
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- Etoposide Impurity 37 (CAS CATO-C4X-202437)
- Etoposide impurity 20 (CAS CATO-C4X-202420)
- Etoposide Impurity 32 (CAS CATO-C4X-202432)
- Etoposide EP Impurity O (CAS 260974-95-6)
- Etoposide Impurity 39 (CAS CATO-C4X-202439)
Recommended Standards
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- Cyclobenzaprine Impurity 3 (CAS 24167-44-0)
- Propranolol EP Impurity A (CAS 36112-95-5)
- 6-Methyl-1-phenyl-1H-pyrazolo[3,4-d]pyrimidin-4-amine (CAS 7154-45-2)
- 3-(2,4-Dichlorobenzyl)-6-hydrazinylpyridazine (CAS 338976-38-8)
- UDP-a-D-Glucose (CAS 133-89-1)
- (2-chlorophenyl)(2,5-difluorophenyl)methanone (CAS 1152708-07-0)
- Acetyl decapeptide-3 (CAS 935288-50-9)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 13829788188 / jacky.chen@cato-chem.com