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. 2025 Jul:553:109513.
doi: 10.1016/j.carres.2025.109513. Epub 2025 May 8.

Preparation of partially O-methylated alditol acetate standards of allose, altrose, gulose and talose for GC-MS analysis of structures containing rare sugars

Camila A Munoz Munoz  1 , Cara A Luiten  2 , Tracey J Bell  3 , Simon F R Hinkley  4 , Ian M Sims  5
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Free article

Preparation of partially O-methylated alditol acetate standards of allose, altrose, gulose and talose for GC-MS analysis of structures containing rare sugars

Camila A Munoz Munoz et al. Carbohydr Res. 2025 Jul.
Free article

Abstract

Mixtures of partially O-methylated alditol acetate standards of allose, altrose, gulose and talose were synthesised. Methyl glycosides of each sugar were prepared and partially methylated using the NaOH/DMSO methylation procedure, adding 0.75 hydroxyl group equivalents of CH3I. Following conversion to partially methylated alditol acetates, via successive hydrolysis, reduction, and acetylation, the derivatives were separated by gas chromatography on low and high polarity columns and analysed by electron impact mass spectrometry. Detailed data on retention times relative to myo-inositol hexaacetate on the two columns are provided.

Keywords: GC–MS standards; Methylation analysis; Partially O-Methylated alditol acetates; Rare sugars.

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Conflict of interest statement

Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

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