Estradiol Valerate 17α-Isomer CAS 182624-54-0
| CAS No. | 182624-54-0 |
| Molecular Formula | C23H32O3 |
| Molecular Weight | 356.50 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
CATO supplies Estradiol Valerate 17α-Isomer (CAS 182624-54-0), a certified reference material (molecular formula C23H32O3, MW 356.50 g/mol) for analytical method development and quality control.
Estradiol Valerate 17α-Isomer (C23H32O3) contains a steroid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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 analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C23H32O3 |
| Molecular Weight | 356.50 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2009 |
Related Estradiol Standards
- Estradiol 17-Isovalerate (CAS 869627-83-8)
- Estradiol Valerate EP Impurity B (CAS 21881-45-8)
- 17-Beta-Estradiol 17-Valerate (CAS 979-32-8)
- Estradiol Impurity 24 (CAS 3434-88-6)
- Estradiol-7α-butyric Acid (CAS 55592-40-0)
- Estradiol Valerate EP Impurity C (CAS 95959-20-9)
- Estradiol Valerate EP Impurity G (CAS 1313382-25-0)
- ∆9(11)-Estradiol Diacetate (CAS 1169-54-6)
Recommended Standards
- Mexiletine EP Impurity C (CAS 2059988-38-2)
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- 1,10-Diethyl 3,8-dithioxo-2,9-dithia-4,7-diazadecanedioate (CAS 19657-27-3)
- 5383-17-5 (CAS 5383-17-5)
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Why CATO?
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