Fulvestrant-3-Glucuronide CAS 261506-27-8
| CAS No. | 261506-27-8 |
| Molecular Formula | C38H55F5O9S |
| Molecular Weight | 782.89 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 782.89 g/mol gives Fulvestrant-3-Glucuronide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
Fulvestrant-3-Glucuronide (CAS 261506-27-8), molecular formula C38H55F5O9S and molecular weight 782.89 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a sulfone group, a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine substitution, a polycyclic aromatic system, Fulvestrant-3-Glucuronide is typically pale yellow to yellow amorphous powder. Its solid-state physicochemical attributes — including a molecular weight of 782.89 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
As a certified reference material (CRM), Fulvestrant-3-Glucuronide meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C38H55F5O9S |
| Molecular Weight | 782.89 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; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | F-containing |
| Sulfur Atoms | 1 |
Related Fulvestrant Standards
- Fulvestrant-17-Glucuronide (CAS 261506-28-9)
- Fulvestrant EP Impurity C (CAS CATO-C4X-19173)
- Fulvestrant impurity 34 (CAS CATO-C4X-191734)
- Fulvestrant Impurity 14 (CAS CATO-C4X-191714)
- Fulvestrant Impurity 37 (CAS 148757-89-5)
- Fulvestrant impurity 57 (CAS CATO-C4X-191757)
- Fulvestrant impurity 54 (CAS CATO-C4X-191754)
- Fulvestrant Impurity 12 (CAS CATO-C4X-191712)
Recommended Standards
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- Olmesartan Impurity 40 (CAS 1227626-51-8)
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- tert-Butyl (3-bromo-6-methylthieno[2,3-b]pyridin-2-yl)carbamate (CAS 953821-09-5)
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