Citric acid is a weak organic tribasic acid. It occurs naturally in citrus fruits. In biochemistry, it is an intermediate in the citric acid cycle, which occurs in the metabolism of all aerobic organisms.
C 2347 (OTTO) Citric acid, anhydrous, GR 99%+ Cas 77-92-9 - used organic acid and pH-control agent in foods, beverages, pharmaceuticals and technical applications. C 2347 (OTTO) Citric acid, anhydrous, GR 99%+ Cas 77-92-9 - used in pharmaceutical preparations, especially in effervescent tablets. It is used as a natural preservative.