β-Estradiol 3,17-DisulfateDISCONTINUED, offer E888945 CAS 3233-70-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 3233-70-3 |
| Molecular Formula | C18H24O8S2 |
| Molecular Weight | 432.51 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies β-Estradiol 3,17-DisulfateDISCONTINUED, offer E888945 (CAS 3233-70-3), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C18H24O8S2. Molecular weight: 432.51 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C18H24O8S2 |
| Molecular Weight | 432.51 g/mol |
| Purity | 97%+ |
| Storage | Store at room temperature, 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Sulfur Atoms | 2 |
Related Estradiol Standards
- Estradiol Impurity 43 (CAS 19590-55-7)
- Estradiol Impurity 35 (CAS 1373116-15-4)
- Estradiol Impurity 31 (CAS CATO-C4X-163631)
- Estradiol Impurity 49 (CAS CATO-C4X-163649)
- Estradiol Impurity 39 (CAS 50394-95-1)
- Estradiol Valerate Impurity 20 (CAS CATO-C4X-284220)
- Estradiol Valerate EP Impurity E (CAS 63042-28-4)
- Estradiol Valerate EP Impurity H (CAS 1421283-56-8)
Recommended Standards
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- Perfluorooctanoylchloride (CAS 335-64-8)
- 5-(tert-Butyl)-4,5,6,7-tetrahydrobenzo[b]thiophene-2-carboxylic acid (CAS 126231-22-9)
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- (+)-Epipinoresinol (CAS 24404-50-0)
- tert-Butyl (1-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)cyclobutyl)carbamate (CAS 1032528-06-5)
- 2-Fluoro-6-(4-methylpiperazin-1-yl)aniline (CAS 1179276-91-5)
- Semaglutide Impurity 164 (CAS CATO-C4X-2226164)
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