17alpha-Estradiol-2,4-d2 CAS 81586-94-9
Purity >95%In StockPharmaceutical Standards
| CAS No. | 81586-94-9 |
| Molecular Formula | C18H22D2O2 |
| Molecular Weight | 274.39 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
17alpha-Estradiol-2,4-d2 (CAS 81586-94-9) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C18H22D2O2. Molecular weight: 274.39 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C18H22D2O2 |
| Molecular Weight | 274.39 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) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
Related alpha Standards
- 17β-Estradiol-2,4-d2 (CAS 53866-33-4)
- 17β-Estradiol-16,16-d2 (CAS 3188-46-3)
- 17beta-Estradiol-13C2 (CAS 82938-05-4)
- 17β-Estradiol-[2,3,4-13C3] (CAS 1261254-48-1)
- Estradiol EP Impurity D-d3 (delta-9(11)-Estradiol-d3) (CAS 791-69-5 (non-labelled))
- 17beta-Estradiol-16,16,17-D3 (CAS 79037-37-9)
- 17Α-Estradiol-16,16,17-D3 (CAS CATO-CCAD300789)
- Estradiol Impurity 22 (CAS CATO-C4X-163622)
Recommended Standards
- Hexestrol-D4 (CAS 1189950-25-1)
- Bisphenol Z-d6 (CAS CATO-CCHM703780)
- Estrone-d4 (Estriol EP Impurity B-d4) (CAS 53866-34-5)
- (R)-3-(1-Amino-3-hydroxypropyl)-5-(trifluoromethyl)benzoic acid (CAS 1335812-67-3)
- Cyanuric Bromide (CAS 14921-00-7)
- 3β-Hydroxyandrosta-5,15-dien-17-one (CAS 17921-63-0)
- 2,2'-Disulfanediylbis(4-methylaniline) (CAS 31183-91-2)
- n-[2-(3,4-diethoxyphenyl)ethyl]thiophene-2-carboxamide (CAS 447448-72-8)
- 2-Chloro-n-(2-cyano-2-methylethyl)-n-ethylacetamide (CAS 1184272-17-0)
- 69558-55-0 O3Y80ZF13F Thymopentin Thymopentin [USAN:INN:BAN] L-Tyrosine, N-(N-(N-(N2-L-arginyl-L-lysyl)-L-alpha-aspartyl)-L-valyl)- L-Tyrosine, N-(N-(N-(N(sup 2)-L-arginyl-L-lysyl)-L-alpha-aspartyl)-L-valyl)- Thymopentine [French] Thymopentinum [Latin] Timopentina [Spanish] Thymopoietin 32-36 TP-5 Thymopoietin pentapeptide ORF-15244 Thymopentine Thymopentinum Timopentina ORF 15244 UNII-O3Y80ZF13F (CAS 69558-55-0)
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