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L-Ascorbic Acid Vitamin C Powder CAS 50-81-7

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L-Ascorbic Acid Vitamin C Powder CAS 50-81-7

L-Ascorbic Acid Vitamin C Powder CAS 50-81-7
L-Ascorbic Acid Vitamin C Powder CAS 50-81-7 L-Ascorbic Acid Vitamin C Powder CAS 50-81-7 L-Ascorbic Acid Vitamin C Powder CAS 50-81-7

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Product Details:
Place of Origin: China
Brand Name: yunbangpharm
Certification: ISO9001/SGS
Model Number: YB112
Payment & Shipping Terms:
Minimum Order Quantity: To Be Negotiated
Price: To Be Negotiated
Packaging Details: 100g 500g
Delivery Time: 3-7Working Days
Payment Terms: L/C, D/A, D/P, T/T, Western Union, MoneyGram

L-Ascorbic Acid Vitamin C Powder CAS 50-81-7

Product Name: L(+)-Ascorbic Acid CAS: 50-81-7
Color: White To Slightly Yellow Form: Powder
Storage Temp.: Room Temp
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L-Ascorbic Acid CAS 50-81-7


L-Ascorbic Acid Vitamin C

L-Ascorbic Acid Vitamin C/ Powder CAS 50-81-7


L(+)-Ascorbic acid Basic information
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
Mol File: 50-81-7.mol
L(+)-Ascorbic acid Structure
L(+)-Ascorbic acid Chemical Properties
Melting point 190-194 °C (dec.)
alpha 20.5 º (c=10,H2O)
Boiling point 227.71°C (rough estimate)
density 1,65 g/cm3
refractive index 21 ° (C=10, H2O)
storage temp. Store at +5°C to +30°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 3.59(1 mM solution);3.04(10 mM solution);2.53(100 mM solution);
PH Range 1 - 2.5
Odor Odorless
optical activity [α]25/D 19.0 to 23.0°, c = 10% in H2O
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 Ascorbic acid (50-81-7)
Safety Information
Safety Statements 24/25-36-26
WGK Germany 1
RTECS CI7650000
HS Code 29362700
Hazardous Substances Data 50-81-7(Hazardous Substances Data)
Toxicity LD50 oral in rat: 11900mg/kg



Description Ascorbic acid, a water-soluble dietary supplement, is consumed by humans more than any other supplement. The name ascorbic means antiscurvy and denotes the ability of ascorbic to combat this disease. Vitamin C is the l-enantiomer of ascorbic acid. Ascorbic acid deficiency in humans results in the body’s inability to synthesize collagen, which is the most abundant protein in vertebrates.
Description L-Ascorbic acid is a naturally occurring electron donor and therefore serves as a reducing agent. It is synthesized from glucose in the liver of most mammalian species, excluding humans, non-human primates, or guinea pigs who must obtain it through dietary consumption. In humans, L-Ascorbic acid acts as an electron donor for eight different enzymes, including those related to collagen hydroxylation, carnitine synthesis (which aids in the generation of adenosine triphosphate), norepinephrine synthesis, tyrosine metabolism, and amidating peptides. L-Ascorbic acid demonstrates antioxidant activity that may be of some benefit for reducing the risk of developing chronic diseases such as cancer, cardiovascular disease, and cataracts.
Chemical Properties White crystals (plates or needles). Soluble in water; slightly soluble in alcohol; insoluble in ether, chloroform, benzene, petroleum ether, oils and fats. Stable to air when dry. One international unit is equivalent to 0.05 milligram of l-ascorbic acid.
Chemical Properties Ascorbic acid occurs as a white to light-yellow-colored, nonhygroscopic, odorless, crystalline powder or colorless crystals with a sharp, acidic taste. It gradually darkens in color upon exposure to light.
Physical properties Appearance: white crystal or crystalline powder, and it is odorless and flavors sour. The color changes yellowish when exposed in the air for a long time. Its aqueous solution is acidic reaction. Solubility: vitamin C is soluble in water, slightly soluble in ethanol, and insoluble in chloroform or ether. Melting point: 190–192? °C.? It would decompose when it melts. Specific optical rotation: +20.5 to +21.5°. Ascorbic acid is two-base acid (the pKa is 4.1 and 11.8). It occurs mainly in the form of sodium salt and calcium salt, and its aqueous solution is strongly acidic reaction. Ascorbic acid is a strong reducing agent.

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