L(+)-Ascorbic acid

$7300.00 3000KG

$7400.00 1000KG

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Chemical Properties

CR330

Product Name:	L(+)-Ascorbic acid
Synonyms:	3-Keto-L-gulofuranolactone;3-Oxo-L-gulofuranolactone;3-oxo-l-gulofuranolactone(enolform);Adenex;Allercorb;Antiscorbic vitamin;antiscorbicvitamin;Antiscorbutic vitamin
CAS:	50-81-7
MF:	C6H8O6
MW:	176.12
EINECS:	200-066-2
Product Categories:	PHARMACEUTICALS;Food and Feed Additive;Acid;Vitamins and Derivatives;Antioxidant;Biochemistry;Sugar Acids;Sugars;Vitamins;Nutritional Supplements;Vitamin Ingredients;Food Additives，Medicine;Carbohydrates & Derivatives;Intermediates & Fine Chemicals;Isotope Labelled Compounds;Used in medicine and Food Additives;vitamin;Inhibitors
Mol File:	50-81-7.mol

L(+)-Ascorbic acid Chemical Properties

Melting point	190-194 °C (dec.)
alpha	20.5 º (c=10,H2O)
density	1,65 g/cm³
FEMA	2109 \| ASCORBIC ACID
refractive index	21 ° (C=10, H2O)
storage temp.	0-6°C
solubility	H₂O: 50 mg/mL at 20 °C, clear, nearly colorless
form	powder
pka	4.04, 11.7(at 25℃)
color	white to slightly yellow
PH	1.0 - 2.5 (25℃, 176g/L in water)
Water Solubility	333 g/L (20 ºC)
Merck	14,830
BRN	84272
Stability:	Stable. May be weakly light or air sensitive. Incompatible with oxidizing agents, alkalies, iron, copper.
CAS DataBase Reference	50-81-7(CAS DataBase Reference)
NIST Chemistry Reference	L-Ascorbic acid(50-81-7)
EPA Substance Registry System	L-Ascorbic acid(50-81-7)

Safety Information

MSDS Information

Provider	Language
L-Threo-2,3,4,5,6-pentahydroxy-1-hexenoic acid-4-lactone	English
SigmaAldrich	English
ACROS	English
ALFA	English

L(+)-Ascorbic acid Usage And Synthesis

Chemical Properties	White crystals
Uses	antiscorbutic, antiviral
Uses	analgesic, antipyretic
Uses	Physiological antioxidant. Coenzyme for a number of hydroxylation reactions; required for collagen synthesis. Widely distributed in plants and animals. Inadequate intake results in deficiency syndrome s such as scurvy. Used as antimicrobial and antioxidant in foodstuffs.
Definition	ChEBI: The L-enantiomer of ascorbic acid and conjugate acid of L-ascorbate.
General Description	White to very pale yellow crystalline powder with a pleasant sharp acidic taste. Almost odorless.
Air & Water Reactions	May be sensitive to prolonged exposure to air and light. Sensitive to moisture. Soluble in water. Aqueous solutions are oxidized by air in a reaction that is accelerated by alkalis, iron and copper. The rate depends on the pH and on oxygen concentration. Also subject to degradation under anaerobic conditions.
Reactivity Profile	L(+)-Ascorbic acid is a lactone. Reacts as a relatively strong reducing agent and decolorizes many dyes. Forms stable metal salts. Incompatible with oxidizers, dyes, alkalis, iron and copper. Also incompatible with ferric salts and salts of heavy metals, particularly copper, zinc and manganese .
Fire Hazard	Flash point data for L(+)-Ascorbic acid are not available; however, L(+)-Ascorbic acid is probably combustible.

L(+)-Ascorbic acid Preparation Products And Raw materials

Preparation Products	Gardenia blue pigment-->Magnesium ascorbyl phosphate-->BETANIN-->L-Carnitine-L-tartrate -->L-Ascorbyl 6-palmitate-->Hibiscetin-->Calcium diascorbate-->Sodium ascorbate-->L-ASCORBYL 6-STEARATE-->L-Threonic acid calcium salt
Raw materials	Sodium methanolate-->Sodium hypochlorite-->D-Sorbitol-->2-Furoic acid-->Nickel sulfate -->D-Sorbitol-->Sodium erythorbate-->Gluconic acid-->Acetonylacetone-->GLOBULINS, CAT GAMMA-->SODIUM ERYTHORBATE-->Sodium ascorbate