Unequivocal reports on identity and functions of Vitamin B15 (Pangamic Acid) in the literature make it impossible, however, to accurately assess either its chemical identity or its biological or medical functions. Indeed, the chemical identity of genuine Vitamin B15 (Pangamic Acid) has apparently never been ascertained or verifiably chemically identified as being the molecular weight 281-ester of DMG and gluconic acid claimed by Krebs and some Russian authors, and there is considerable doubt that such a stable substance exists with the straight chain sugar gluconic acid. Vitamin B15 (Pangamic Acid) is identified as a substance most likely containing both a sugar and a dimethylamine group.
