1, 3, 5(10)-ESTRATRIEN-3, 17β-DIOL 17-PROPIONATE CAS 3758-34-7

Purity 97%+In StockPharmaceutical Standards
CAS No.3758-34-7
Molecular FormulaC21H28O3
Molecular Weight328.45 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

1, 3, 5(10)-ESTRATRIEN-3, 17β-DIOL 17-PROPIONATE CAS 3758-34-7 chemical structure

Description

The occurrence of 1, 3, 5(10)-ESTRATRIEN-3, 17β-DIOL 17-PROPIONATE is closely related to a steroid core, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

1, 3, 5(10)-ESTRATRIEN-3, 17β-DIOL 17-PROPIONATE (CAS 3758-34-7), molecular formula C21H28O3 and molecular weight 328.45 g/mol, is a CATO reference standard with documented purity and traceability.

Structurally, 1, 3, 5(10)-ESTRATRIEN-3, 17β-DIOL 17-PROPIONATE (C21H28O3) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.0, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 328.45 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.

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), 1, 3, 5(10)-ESTRATRIEN-3, 17β-DIOL 17-PROPIONATE 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 FormulaC21H28O3
Molecular Weight328.45 g/mol
AppearancePale yellow to yellow crystalline powder
Purity97%+
StorageStore at 2-8°C, protect from light, keep sealed and dry
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light
Degree of Unsaturation (DBE)8.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958

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