Water Soluble Barbituric Acid is available in off white to light brown coloured crystalline powder form. Barbituric Acid is sparingly soluble in water and freely soluble in hot water. Barbituric Acid can melt at a temperature range varying from 253°C to 255°C. Water Soluble Barbituric Acid is formulated using 98.0 % w / w assay and its molecular weight is 128.09 gm.