Beta-Estradiol CAS 50-28-2
Purity >95%In StockPharmaceutical Standards
| CAS No. | 50-28-2 |
| Molecular Formula | C18H24O2 |
| Molecular Weight | 272.38 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Order Beta-Estradiol (CAS 50-28-2) pharmaceutical standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C18H24O2. Molecular weight: 272.38 g/mol. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C18H24O2 |
| Molecular Weight | 272.38 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >95% |
| Storage | Store at 2-8°C, protect from light |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Beta Standards
- Estradiol Impurity 22 (CAS CATO-C4X-163622)
- Estradiol Impurity 23 (CAS 1093411-48-3)
- Estradiol Impurity 55 (CAS CATO-C4X-163655)
- Estradiol EP Impurity D-d3 (delta-9(11)-Estradiol-d3) (CAS 791-69-5 (non-labelled))
- Estradiol Impurity 45 (CAS 894-81-5)
- 17beta-Estradiol-13C2 (CAS 82938-05-4)
- Estradiol Hemihydrate EP Impurity A (CAS 19973-76-3)
- Estradiol Impurity 2 (17beta-delta8,9-Dehydroestradiol) (CAS 23392-52-1)
Recommended Standards
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- 1-(Cyclopropylsulfonyl)piperidin-4-one (CAS 1016263-66-3)
- Acetamide-D5 (CAS 33675-83-1)
- 247069-31-4 A817448 N-methyl-3-azetidinamine N-methylazetidin-3-amine (CAS 247069-31-4)
- 4-Cyano-1-methylpyridin-1-ium chloride (CAS 45709-30-6)
- N-(5-Amino-2-methylphenyl)-2-thiophenecarboxamide (CAS 926195-86-0)
- (2-Ethoxy-5-isopropylphenyl)boronic acid (CAS 1127647-66-8)
- Allo-Thr5-Tirzepatide (CAS CATO-CPTD788934)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com