Ethynyl Estradiol 17-Acetate CAS 21221-29-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 21221-29-4 |
| Molecular Formula | C22H26O3 |
| Molecular Weight | 338.44 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Ethynyl Estradiol 17-Acetate (CAS 21221-29-4) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C22H26O3. Molecular weight: 338.44 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C22H26O3 |
| Molecular Weight | 338.44 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
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Recommended Standards
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- 1-Methyl-4-(phenylmethyl)piperazine (CAS 62226-74-8)
- 5-Chloro-6-methyl-1,3-benzothiazol-2-amine (CAS 50850-98-1)
- (R)-5-(1-Aminoethyl)-2-fluoro-3-(trifluoromethyl)aniline hydrochloride (CAS 2654746-47-9)
- 3-(((2,3-Dihydrobenzofuran-5-yl)methyl)amino)propan-1-ol (CAS 1157336-24-7)
- 4'-(Chloromethyl)-3,2':3',3''-terpyridine (CAS 1227564-25-1)
- Neuropeptide Y (3-36) (human, rat) trifluoroacetate salt (CAS 150138-78-6)
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