Tri hydroxy propane

Glycerol must be, therefore, 1-2-3-tri-hydroxy propane, as represented hp the above formula. 

As previously stated, it is generally true that stable compounds do not result when more than one hydroxyl group is linked to one carbon atom. It is plain therefore that the simplest member of each class of poly-hydroxy substitution products must have as many carbon atoms as there are hydroxyl groups. Thus, the simplest di-hydroxy compound is the di-hydroxy ethane, glycol, and similarly, the simplest tri-hydroxy compound is the tri-hydroxy propane, or glycerol, as above. Considering, now, those poly-hydroxy substitution products... 

Oxidation Products of Poly-hydroxy Alcohols.—In our study of the mixed poly-substitution products we considered the mixed alcohol-aldehyde and alcohol-ketone compounds and showed that they are intermediate oxidation products between poly-hydroxy alcohols and poly-basic acids (p. 228). To illustrate, when glycerol, tri-hydroxy propane, is oxidized the following products are obtained. 

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