1.2.3.15 12.6 - methylglyoxal pH 6, 50°C 762882 1.2.3.15 15.9 - 5-hydroxymethylfurfural pH 6, 50°C 762882 1.2.3.15 34.1 - glycerol pH 6, 50°C 762882 1.2.3.15 198 - methylglyoxal at pH 4.5 and 25°C 739561