D-(+)-Glucono-1,5-lactone CAS 90-80-2
D-(+)-Glucono-1,5-lactone CAS 90-80-2
White crystalline or crystalline powder, odorless, with a sweet taste followed by bitterness and a sour taste. Melting point 150-152 ℃ (decomposition). Easy to dissolve in water (room temperature, 60g/100mL), slightly soluble in ethanol (1g/100mL), insoluble in ether. Hydrolyzed into an equilibrium solution of gluconic acid and lactone in aqueous solution, the pH value of the newly prepared 1% aqueous solution is 3.5, which becomes 2.5 after 2 hours. The oral LD50 of mice is 17.8g/kg, and there are no special regulations on ADI (FAO/WHO, 1994).
White crystalline or crystalline powder, odorless, with a sweet taste followed by bitterness and a sour taste. Melting point 150-152 ℃ (decomposition). Easy to dissolve in water (room temperature, 60g/100mL), slightly soluble in ethanol (1g/100mL), insoluble in ether. Hydrolyzed into an equilibrium solution of gluconic acid and lactone in aqueous solution, the pH value of the newly prepared 1% aqueous solution is 3.5, which becomes 2.5 after 2 hours. The oral LD50 of mice is 17.8g/kg, and there are no special regulations on ADI (FAO/WHO, 1994).