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Pharmaceutical Raw Material for Vitamin C Ascorbic Acid CAS 50-81-7



Pharmaceutical Raw Material for Vitamin C Ascorbic Acid CAS 50-81-7


Basic Info.

Product Name: Vitamin C
Synonyms: L-Ascorbic Acid, Free Acid; Vitamin C; L-(+)-Ascorbic acid; VC; Ascorbic acid; Vita C BP2005; Vitamine C;
Assay: 98%
CAS No.: 50-81-7
EINECS No.: 200-066-2
Molecular Formula: C6H8O6
Molecular Weight: 176.12
Melting point: 190-194 ° C (DEC. )
Boiling point: 552.672° C at 760 mmHg
Flashing point: 238.199° C
Water solubility: 333 g/L (20º C)
Appearance: White crystalline powder
Packing: 25KG/Drum
Application: To cure Scurvy


Description:

Vitamin C or L-ascorbic acid, or simply ascorbate (the anion of ascorbic acid), is an essential nutrient for humans and certain other animal species. Vitamin C refers to a number of vitamers that have vitamin C activity in animals, including ascorbic acid and its salts, and some oxidized forms of the molecule like dehydroascorbic acid. Ascorbate and ascorbic acid are both naturally present in the body when either of these is introduced into cells, since the forms interconvert according to pH.

Vitamin C is a cofactor in at least eight enzymatic reactions, including several collagen synthesis reactions that, when dysfunctional, cause the most severe symptoms of scurvy. [1] In animals, these reactions are especially important in wound-healing and in preventing bleeding from capillaries. Ascorbate may also act as an antioxidant against oxidative stress. [2] However, the fact that the enantiomer D-ascorbate (not found in nature) has identical antioxidant activity to L-ascorbate, yet far less vitamin activity, [3] underscores the fact that most of the function of L-ascorbate as a vitamin relies not on its antioxidant properties, but upon enzymic reactions that are stereospecific. "Ascorbate" without the letter for the enantiomeric form is always presumed to be the chemical L-ascorbate.


Application:

Scurvy is an avitaminosis resulting from lack of vitamin C, since without this vitamin, the synthesized collagen is too unstable to perform its function. Scurvy leads to the formation of brown spots on the skin, spongy gums, and bleeding from all mucous membranes. The spots are most abundant on the thighs and legs, and a person with the ailment looks pale, feels depressed, and is partially immobilized. In advanced scurvy there are open, suppurating wounds and loss of teeth and, eventually, death. The human body can store only a certain amount of vitamin C, [41] and so the body stores are depleted if fresh supplies are not consumed. The time frame for onset of symptoms of scurvy in unstressed adults on a completely vitamin C free diet, however, may range from one month to more than six months, depending on previous loading of vitamin C.



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