Estriol Trisulfate Trisodium Salt CAS 100940-55-4
| CAS No. | 100940-55-4 |
| Molecular Formula | C18H21O12S3 |
| Molecular Weight | N/A |
| 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.
Estriol Trisulfate Trisodium Salt (CAS 100940-55-4) is a high-purity analytical reference standard with the molecular formula C18H21O12S3Na and a molecular weight of 548.52 g/mol.
Structurally, Estriol Trisulfate Trisodium Salt (C18H21O12S3Na) contains a flavonoid core, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.5, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 548.52 g/mol, it falls into the moderately-high-molecular-weight range. 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).
As a certified reference material (CRM), Estriol Trisulfate Trisodium Salt 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 | C18H21O12S3 3*Na |
| Molecular Weight | 548.52 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 |
| Degree of Unsaturation (DBE) | 8.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Sulfur Atoms | 3 |
Related Estriol Standards
- Estriol impurity 24 (CAS 104202-84-8)
- Estriol EP Impurity E (CAS 1228-72-4)
- Estriol impurity 23 (CAS 1247-47-8)
- Estriol EP Impurity C (CAS 1474-53-9)
- Estriol Impurity 14 (CAS 1497406-77-5)
- Estriol 3-O- β-D-Glucuronide Sodium Salt (CAS 15087-06-6)
- Estriol EP Impurity I (CAS 15370-49-7)
- Estriol Impurity N2 (CAS 177714-21-5)
Recommended Standards
- 3-(5-Fluoro-2-nitrophenoxy)piperidine (CAS 1304404-55-4)
- (4-Chlorophenyl)(cycloheptyl)methanol (CAS 1249680-53-2)
- 2-((1,3-Dioxoisoindolin-2-yl)methyl)benzoic acid (CAS 53663-18-6)
- meso-Tetrakis(4-thiophenephenyl)porphyrin (CAS 1875056-55-5)
- 3-[(4-methoxyphenyl)methoxy]propanenitrile (CAS 791067-67-9)
- 4-(2,5-Dihydroxyphenyl)butanoic acid (CAS 77267-97-1)
- Amorolfine Impurity C17 (CAS 67306-03-0)
- 3-Cyclopropoxy-N,N-dimethyl-5-(methylamino)isonicotinamide (CAS 1243449-98-0)
- 1-Ethylindane (CAS 4830-99-3)
- Semaglutide impurity 27 (CAS CATO-C4X-222627)
Why CATO?
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