Estradiol Impurity 18 CAS 63042-22-8
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 63042-22-8 |
| Molecular Formula | C26H38O3 |
| Molecular Weight | 398.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Estradiol Impurity 18 (CAS 63042-22-8) is a pharmaceutical standards certified reference material from CATO. Molecular formula: C26H38O3. Molecular weight: 398.58 g/mol. ISO 17034 accredited production ensures traceable purity and reliable analytical results.
Physical & Chemical Properties
| Molecular Formula | C26H38O3 |
| Molecular Weight | 398.58 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.) | 1975 |
Related Estradiol Standards
- β-Estradiol 17-Cypionate (CAS 313-06-4)
- Estradiol Impurity 47 (CAS CATO-C4X-163647)
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- Estradiol Benzoate EP Impurity B (CAS CATO-C4X-35511)
- Estradiol Impurity 32 (CAS CATO-C4X-163632)
- Estradiol Impurity 53 (CAS CATO-C4X-163653)
- Estradiol Impurity 46 (CAS CATO-C4X-163646)
- Estradiol-3,17b-dibutyrate (CAS 63042-23-9)
Recommended Standards
- 7-(1,1-Dimethylethyl)-3-(2,6-dimethylphenyl)-2,3,5,6,7,8-hexahydro-2-thioxo[1]benzothieno[2,3-d]pyrimidin-4(1H)-one (CAS 744227-08-5)
- Selenium(IV) bromide (CAS 7789-65-3)
- 4-ESTREN-17β-OL-3-ONE CYPIONATE (CAS 601-63-8)
- 5-Fluoro-2-methoxyphenol (CAS 72955-97-6)
- 9-(4-Chlorobenzyl)-9H-purin-6-amine (CAS 56046-27-6)
- benzothiophen-6-ylmethanol (CAS 6179-28-8)
- 3-Methyl-N-(3-(trifluoromethyl)benzyl)-1,2,4-oxadiazol-5-amine (CAS 1259056-49-9)
- (1S,4R)-4-(3,4-Dichlorophenyl)-1,2,3,4-tetrahydro-1-naphthalenamine (CAS 675126-06-4)
- (S)-2-Amino-N-(4-chlorobenzyl)-N-ethyl-3-methylbutanamide (CAS 1354015-00-1)
- Peptide 432 (CAS CATO-CPTD788432)
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