Hough, E. et al. published their research in Acta Crystallographica, Section B: Structural Crystallography and Crystal Chemistry in 1973 | CAS: 14431-43-7

(2S,3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol hydrate (cas: 14431-43-7) belongs to tetrahydropyran derivatives. Dihydropyrans and tetrahydropyrans are examples of cyclic ethers widespread in nature. The reaction of tertiary 1,4- and 1,5-diols with cerium ammonium nitrate at room temperature gives tetrahydrofuran and tetrahydropyran derivatives in high yield and stereoselectivity. Various fragrant compounds have been synthesized using this method.Formula: C6H14O7

Crystal structure of α-D-glucose monohydrate was written by Hough, E.;Neidle, S.;Rogers, D.;Troughton, P. G. H.. And the article was included in Acta Crystallographica, Section B: Structural Crystallography and Crystal Chemistry in 1973.Formula: C6H14O7 This article mentions the following:

The crystal structure of α-D-glucose monohydrate was refined with intensity data measured diffractometrically, using the coordinates from the photographic study of Killean, Ferrier & Young (1962). The final R index is 0.0301 for 906 statistically significant reflexions. In the experiment, the researchers used many compounds, for example, (2S,3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol hydrate (cas: 14431-43-7Formula: C6H14O7).

(2S,3R,4S,5S,6R)-6-(Hydroxymethyl)tetrahydro-2H-pyran-2,3,4,5-tetraol hydrate (cas: 14431-43-7) belongs to tetrahydropyran derivatives. Dihydropyrans and tetrahydropyrans are examples of cyclic ethers widespread in nature. The reaction of tertiary 1,4- and 1,5-diols with cerium ammonium nitrate at room temperature gives tetrahydrofuran and tetrahydropyran derivatives in high yield and stereoselectivity. Various fragrant compounds have been synthesized using this method.Formula: C6H14O7

Referemce:
Tetrahydropyran – Wikipedia,
Tetrahydropyran – an overview | ScienceDirect Topics