Labeled Ascorbic Acid. Physiological antioxidant. Coenzyme for a number of hydroxylation reactions; required for collagen synthesis. Widely distributed in plants and animals. Inadequate intake results in deficiency syndromes such as scurvy. Used as antimicrobial and antioxidant in foodstuffs.Form:White to Off-White SolidMelting Point:187-189°CSolubility:DMSO, Methanol