Wisniewski, Wladyslaw et al. published their research in Farmacja Polska in 1971 | 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. Tetrahydropyrans and furans principally constitute as a central motif in diverse medicinally privileged molecules. One classic procedure for the organic synthesis of tetrahydropyran is by hydrogenation of the 3,4-isomer of dihydropyran with Raney nickel.Computed Properties of C6H14O7

Determination of water in some pharmacopoeial compounds by means of refractometric method was written by Wisniewski, Wladyslaw;Szlaski, Janusz. And the article was included in Farmacja Polska in 1971.Computed Properties of C6H14O7 This article mentions the following:

Refractometric measurements of water solutions of Na2S2O3, NaBr, glucose, Na2S2O3.5H2O, NaBr.2H2O, and glucose-H2O, performed on the Abbe refractometer showed the refraction index is a linear function of the water content. A table was prepared for a quick determination of the contents of water of crystallization and hygroscopic water. 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: 14431-43-7Computed Properties of 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. Tetrahydropyrans and furans principally constitute as a central motif in diverse medicinally privileged molecules. One classic procedure for the organic synthesis of tetrahydropyran is by hydrogenation of the 3,4-isomer of dihydropyran with Raney nickel.Computed Properties of C6H14O7

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