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Qingdao Qingmei Biotech Co.,Ltd
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Usage
：Vitamin C is essential for the formation of Antibodies and collagen, tissie repair, the metabolism of phenylalanine, tyrosine and folic acid, the utilization of Iron and carbohydrates, the synthesis of fat and proteins, the maintenance of immunity, hydroxyl and serotonin, the remain of endothelium intact and promotion of non-haem iron’s absorption. Meanwhile, it has the function of antioxidant, fighting free radicals, inhibiting the formation of tyrosinase so as to achieve the whiting and pale solution effect.
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Hangzhou Dingyan Chem Co., Ltd
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[appearance]
White or slightly yellowish crystalline or crystalline powder, odorless, sour. Melting point 190 ~ 192℃, rotatory alpha D20=+21° ~ +22°. Soluble in water, soluble in ethanol, insoluble in chloroform, ether and benzene. The Ph value of 5% aqueous solution was 2.2 ~ 2.5. In dry air is relatively stable, its aqueous solution is unstable, especially in neutral or alkaline solution is quickly oxidized, light, heat and copper, iron and other metal ions will accelerate the oxidation. The ADI value of rat transoral LD505g/kg was not specified (FAO/WHO, 1994).
"Melting point"
190-194 ° C (dec)
Specific rotation
20.5 DHS (c = 10, H2O)
"Density"
,65 1 g/cm3
【 FEMA 】
2109
Refractive index
21 ° (C = 10, H2O)
Storage conditions
0 to 6 ° C
[solubility]
H2O: 50 mg/mL at 20 °C, clear, nearly colorless
[form]
powder
【 color 】
White to slightly yellow
[water solubility]
333 g/L (20 DHS C)
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Pharma Sources Insight June 2024: Globalization on the Go
