19-Iodocholesterol 3-acetate CAS 4561-90-4

Purity 97%+In StockPharmaceutical Standards
CAS No.4561-90-4
Molecular FormulaC29H47IO2
Molecular Weight554.59 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

19-Iodocholesterol 3-acetate CAS 4561-90-4 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 554.59 g/mol gives 19-Iodocholesterol 3-acetate distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

CATO supplies 19-Iodocholesterol 3-acetate (CAS 4561-90-4), a certified reference material (molecular formula C29H47IO2, MW 554.59 g/mol) for analytical method development and quality control.

19-Iodocholesterol 3-acetate (C29H47IO2) contains a steroid core, a hydroxyl group, an ether linkage, iodine substitution. Halogen substitution raises its density and boiling point, 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).

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), 19-Iodocholesterol 3-acetate 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 FormulaC29H47IO2
Molecular Weight554.59 g/mol
AppearanceOff-white to pale yellow crystalline powder. (slight halide-like odor)
Purity97%+
StorageStore at room temperature, protect from light
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1958
Halogen ContentI-containing

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