4-Hydroxy-17β-estradiol-1,2,16,16,17-d5 CAS 221093-38-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 221093-38-5 |
| Molecular Formula | C18H19D5O3 |
| Molecular Weight | 293.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Hydroxy-17β-estradiol-1,2,16,16,17-d5 (CAS 221093-38-5) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C18H19D5O3. Molecular weight: 293.41 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C18H19D5O3 |
| Molecular Weight | 293.41 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) | 9.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2020 |
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