17beta-Estradiol-D4 CAS 66789-03-5
Purity >95%In StockPharmaceutical Standards
| CAS No. | 66789-03-5 |
| Molecular Formula | C18H20D4O2 |
| Molecular Weight | 276.41 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 17beta-Estradiol-D4 (CAS 66789-03-5), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C18H20D4O2. Molecular weight: 276.41 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C18H20D4O2 |
| Molecular Weight | 276.41 g/mol |
| Appearance | Pale yellow to 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) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1976 |
Related beta Standards
- 17β-Estradiol-2,4,16,16,17-d5 (CAS 221093-45-4)
- 17beta-Estradiol-16,16,17-D3 (CAS 79037-37-9)
- 17Α-Estradiol-16,16,17-D3 (CAS CATO-CCAD300789)
- 17β-Estradiol-[2,3,4-13C3] (CAS 1261254-48-1)
- 17β-Estradiol-2,4-d2 (CAS 53866-33-4)
- 17alpha-Estradiol-2,4-d2 (CAS 81586-94-9)
- 17β-Estradiol-16,16-d2 (CAS 3188-46-3)
- 17beta-Estradiol-13C2 (CAS 82938-05-4)
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- Methyl 2-chloro-5-fluoro-4-nitrobenzoate (CAS 1897500-78-5)
- [D-Glu]3-Semaglutide (CAS CATO-C4X-2226253)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 13829788188 / jacky.chen@cato-chem.com