Estradiol Valerate EP Impurity E CAS 63042-28-4
Purity >95%In StockPharmacopoeial Impurity Standards
| CAS No. | 63042-28-4 |
| Molecular Formula | C28H40O4 |
| Molecular Weight | 440.61 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Order Estradiol Valerate EP Impurity E (CAS 63042-28-4) pharmacopoeial impurity standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C28H40O4. Molecular weight: 440.61 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C28H40O4 |
| Molecular Weight | 440.61 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | >95% |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1975 |
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Recommended Standards
- Bempedoic Acid Impurity 41 (CAS CATO-C4X-218941)
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- Sunitinib Impurity 5 (CAS 5434-29-7)
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- Methyl 4-amino-1-(ethoxymethyl)-1h-pyrrole-2-carboxylate (CAS 1478728-60-7)
- 4-(Difluoromethyl)-5-iodo-6-methoxypicolinic acid (CAS 1805544-92-6)
- Ethyl 3-(methylsulfonamido)benzoate (CAS 93884-11-8)
- 1-Methyl-1,2,3,4-tetrahydronaphthalene (CAS 1559-81-5)
- Insulin Pork(≥27 USP units/mg) (CAS 12584-58-6)
Why CATO?
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