(2R, 4’’S, 8’’S)-α-Tocopherol CAS 77171-98-3

Purity 97%+In StockPharmaceutical Standards
CAS No.77171-98-3
Molecular FormulaC29H50O2
Molecular Weight430.71 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(2R, 4’’S, 8’’S)-α-Tocopherol CAS 77171-98-3 chemical structure

Description

CATO supplies (2R, 4’’S, 8’’S)-α-Tocopherol (CAS 77171-98-3), a certified reference material (molecular formula C29H50O2, MW 430.71 g/mol) for analytical method development and quality control.

Based on its molecular formula C29H50O2, (2R, 4’’S, 8’’S)-α-Tocopherol contains a steroid core, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 430.71 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.

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 FormulaC29H50O2
Molecular Weight430.71 g/mol
AppearanceOff-white to pale yellow crystalline powder
Purity97%+
StorageStore at room temperature
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityMay oxidize slowly on prolonged air exposure
Degree of Unsaturation (DBE)5.0
UV AbsorptionUV-absorbing
Structural FeaturesAromatic ring present
CAS Registry Year (est.)1979

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