346688-66-2 4-Hydroxy-4-(3-methylsulfanylphenyl)-piperidin-1-carboxylic Acid tert-Butyl Ester 4-Hydroxy-4-[3-(methylthio)phenyl]-1-piperidinecarboxylic Acid 1,1-Dimethylethyl Ester CAS 346688-66-2

Purity 97%+In StockPharmaceutical Standards
CAS No.346688-66-2
Molecular FormulaC17H25NO3S
Molecular Weight323.45 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

346688-66-2
4-Hydroxy-4-(3-methylsulfanylphenyl)-piperidin-1-carboxylic Acid tert-Butyl Ester
4-Hydroxy-4-[3-(methylthio)phenyl]-1-piperidinecarboxylic Acid 1,1-Dimethylethyl Ester CAS 346688-66-2 chemical structure

Description

The occurrence of 346688-66-2 4-Hydroxy-4-(3-methylsulfanylphenyl)-piperidin-1-carboxylic Acid tert-Butyl Ester 4-Hydroxy-4-[3-(methylthio)phenyl]-1-piperidinecarboxylic Acid 1,1-Dimethylethyl Ester is closely related to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.

346688-66-2 4-Hydroxy-4-(3-methylsulfanylphenyl)-piperidin-1-carboxylic Acid tert-Butyl Ester 4-Hydroxy-4-[3-(methylthio)phenyl]-1-piperidinecarboxylic Acid 1,1-Dimethylethyl Ester (CAS 346688-66-2) is a high-purity analytical reference standard with the molecular formula C17H25NO3S and a molecular weight of 323.45 g/mol.

Owing to a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage, 346688-66-2 4-Hydroxy-4-(3-methylsulfanylphenyl)-piperidin-1-carboxylic Acid tert-Butyl Ester 4-Hydroxy-4-[3-(methylthio)phenyl]-1-piperidinecarboxylic Acid 1,1-Dimethylethyl Ester is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 323.45 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.

The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.

Physical & Chemical Properties

Molecular FormulaC17H25NO3S
Molecular Weight323.45 g/mol
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)6.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)2025
Nitrogen Atoms1
Sulfur Atoms1

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