(2S, 4’’S, 8’’R)-α-Tocopherol CAS 79434-82-5

Purity 97%+In StockPharmaceutical Standards
CAS No.79434-82-5
Molecular FormulaC29H50O2
Molecular Weight430.71 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

(2S, 4’’S, 8’’R)-α-Tocopherol CAS 79434-82-5 chemical structure

Description

Compared with other compounds in its class, the molecular weight of 430.71 g/mol gives (2S, 4’’S, 8’’R)-α-Tocopherol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.

(2S, 4’’S, 8’’R)-α-Tocopherol (CAS 79434-82-5) is a high-purity analytical reference standard with the molecular formula C29H50O2 and a molecular weight of 430.71 g/mol.

Structurally, (2S, 4’’S, 8’’R)-α-Tocopherol (C29H50O2) contains a steroid core, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 5.0, corresponding to approximately 5 ring(s) or double-bond equivalent(s). With a molecular weight of 430.71 g/mol, it falls into the moderately-high-molecular-weight range. 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 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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