17beta-Estradiol-13C2 CAS 82938-05-4
| CAS No. | 82938-05-4 |
| Molecular Formula | C16[13C]2H24O2 |
| Molecular Weight | 274.37 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
17beta-Estradiol-13C2 (CAS 82938-05-4), molecular formula C16[13C]2H24O2 and molecular weight 274.37 g/mol, is a CATO reference standard with documented purity and traceability.
17beta-Estradiol-13C2 (C16[13C]2H24O2) contains a steroid core, a hydroxyl group, an ether linkage. Its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO manufactures 17beta-Estradiol-13C2 under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C16[13C]2H24O2 |
| Molecular Weight | 274.37 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | >90% |
| 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
Related beta Standards
- 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)
- 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)
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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 18665070610 / Nicole.chen@cato-chem.com