Maxacalcitol Impurity 18 CAS 147725-63-1

Purity 97%+In StockPharmacopoeial Impurity Standards
CAS No.147725-63-1
Molecular FormulaC18H36O2Si
Molecular Weight312.56 g/mol
CategoryPharmacopoeial Impurity Standards / EP Impurities
AvailabilityIn Stock

Chemical Structure

Maxacalcitol Impurity 18 CAS 147725-63-1 chemical structure

Description

As a certified reference material (CRM), Maxacalcitol Impurity 18 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.

Maxacalcitol Impurity 18 (CAS 147725-63-1) is a certified pharmaceutical impurity reference standard with the molecular formula C18H36O2Si and a molecular weight of 312.56 g/mol.

Structurally, Maxacalcitol Impurity 18 (C18H36O2Si) contains a carboxylic acid group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 1.0, corresponding to approximately 1 ring(s) or double-bond equivalent(s). With a molecular weight of 312.56 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.

Recommended for quantitative analysis by HPLC, GC, LC-MS/MS, or GC-MS as an external calibration standard; it can also be used for spiked-recovery experiments, LOD/LOQ determination, and LC-MS/MS multiple-reaction-monitoring (MRM) calibration.

Physical & Chemical Properties

Molecular FormulaC18H36O2Si
Molecular Weight312.56 g/mol
Purity97%+
StorageStore at room temperature
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityStable under recommended storage conditions
Degree of Unsaturation (DBE)1.0
CAS Registry Year (est.)1999

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