2 3 4 5 6-penta hydroxy hexanoic acid July 8, 2019 16 32 64 128 2 3 4 5 6 pentahydroxy hexanoic acid 2 3 4 5 6-pentahydroxyhexanal 2 3 4 5 6-pentahidroxihexanal 1 3 4 5 6-pentahydroxyhexan-2-one (2r 3s 4r 5r)-2 3 4 5 6-pentahydroxyhexanal