Butanoic acid, 4-[(2,4-dihydroxy-3,3-dimethyl-1-oxobutyl)amino]- Butyric acid, 4-(2,4-dihydroxy-3,3-dimethylbutyramido)- (7CI, 8CI) DL-Homopantothenic acid pantogab 1990-07-4 (Calcium[2:1] salt) 4-((2,4-Dihydroxy-3,3-dimethyl-1-oxobutyl)amino)butanoic acid Gaba pantoate Gaba-pantoyl