2-Hydroxyestrone sodium 3-sulfate CAS 21343-47-5
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 21343-47-5 |
| Molecular Formula | C18H21O6S Na |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Order 2-Hydroxyestrone sodium 3-sulfate (CAS 21343-47-5) pharmaceutical standards reference standard from CATO: ISO 17034 accredited producer, 130,000+ catalog items in stock. Molecular formula: C18H21O6S Na. COA included with every batch.
Physical & Chemical Properties
| Molecular Formula | C18H21O6S Na |
| Molecular Weight | 388.41 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
| Sulfur Atoms | 1 |
Related Hydroxyestrone Standards
- [2,3,4-13C3]-16α-Hydroxyestrone (CAS 1241684-28-5)
- 16α-Hydroxyestrone diacetate (CAS 1247-71-8)
- 16a-Hydroxyestrone 16-β-D-glucuronide (CAS 15270-34-5)
- 16b-Hydroxyestrone sodium-3-sulfate (CAS 54800-12-3)
- 2-Hydroxyestrone-3-methyl ether-d (CAS 5976-63-6)
- 16a-Hydroxyestrone sodium-3-sulfate (CAS 81072-42-6)
- 3-Hydroxyestrone sodium 2-sulfate (CAS 82803-17-6)
- 16b-Hydroxyestrone (CAS 966-06-3)
Recommended Standards
- 1-[(2,3-Difluorophenyl)methyl]-2-methylpiperazine (CAS 1240580-49-7)
- 1-(2,3-Dichlorophenyl)-3-(2,3-dimethylphenyl)propan-1-one (CAS 898793-23-2)
- 4-Amino-N-cyclopentyl-1-ethyl-1H-pyrazole-3-carboxamide (CAS 895930-41-3)
- 1-[1-(4-bromo-3-methylphenyl)-2,5-dimethyl-1H-pyrrol-3-yl]-2-chloroethanone (CAS 757221-60-6)
- 1-Chloro-4-methylphthalazine (CAS 19064-68-7)
- 6-(2,2,2-Trifluoroethyl)pyridin-2-amine (CAS 1393583-86-2)
- Des-Tyr10-Tirzepatide (CAS CATO-CPTD788680)
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