L-malic acid, also known as hydroxysuccinic acid, is a naturally occurring organic compound that plays a significant role in the citric acid cycle, a key metabolic pathway in cellular respiration. It is a white crystalline substance with a tart taste, commonly found in various fruits such as apples and grapes. Calcium-hydrogen-L malate, on the other hand, is a salt derived from L-malic acid and calcium hydroxide. It is used as a food additive, particularly as a flavor enhancer and acidity regulator, due to its ability to provide a tangy taste and maintain the pH balance in food products. Both L-malic acid and calcium-hydrogen-L malate are important in various industries, including food, pharmaceuticals, and cosmetics, for their unique properties and applications.
The CAS Registry Mumber 816-67-1 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 8,1 and 6 respectively; the second part has 2 digits, 6 and 7 respectively. Calculate Digit Verification of CAS Registry Number 816-67: (5*8)+(4*1)+(3*6)+(2*6)+(1*7)=81 81 % 10 = 1 So 816-67-1 is a valid CAS Registry Number.