Ethynyl Estradiol 17-β-D-Glucuronide CAS 75803-39-3
| CAS No. | 75803-39-3 |
| Molecular Formula | C26H32O8 |
| Molecular Weight | 472.53 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Ethynyl Estradiol 17-β-D-Glucuronide 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.
CATO supplies Ethynyl Estradiol 17-β-D-Glucuronide (CAS 75803-39-3), a certified reference material (molecular formula C26H32O8, MW 472.53 g/mol) for analytical method development and quality control.
Based on its molecular formula C26H32O8, Ethynyl Estradiol 17-β-D-Glucuronide contains a carboxylic acid group, a hydroxyl group, an ether linkage, a polycyclic aromatic system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 472.53 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
Physical & Chemical Properties
| Molecular Formula | C26H32O8 |
| Molecular Weight | 472.53 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| 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) | 11.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1978 |
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Recommended Standards
- Deacetylnomilin (CAS 3264-90-2)
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- 4-Bromo-5-nitro-1H-pyrazole-3-carboxylic Acid (CAS 84547-93-3)
- Levonorgestrel-d6 (CAS 2376035-98-0)
- (S)-1-(2-bromo-3-methylphenyl)ethan-1-amine (CAS 1213179-34-0)
- 2-Methyl-4-propylpentane-1,5-diol (CAS 33545-78-7)
- Dimethylarginine-d (CAS 850208-77-4)
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- 5-Bromo-3-methyl-2-(morpholino)pyridine (CAS 566158-47-2)
- Semaglutide impurity 260 (CAS CATO-C4X-2226260)
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