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hexahydric1885
1885 Jrnl. Chem. Soc.48ii. 1046 (heading) Reduction in hexahydric alcohols.
1964 N. G. ClarkMod. Org. Chem. xvi. 315 The product, sorbitol, is a hexahydric alcohol (one of the ‘sugar alcohols’), which occurs naturally in many fruits.