Products Description of Ascorbic Acid CAS#50-81-7
Ascorbic Acid, also known as Vitamin C, is a white or slightly yellow crystalline powder. It is odorless, tastes sour, and is freely soluble in water, slightly soluble in ethanol. This compound is easily oxidized and discolored upon exposure to heat, light and moisture. It is a water-soluble antioxidant with strong reducing properties. It is widely used as an essential nutritional additive and antioxidant in food, beverage, feed, cosmetic and pharmaceutical formulations, helping to prevent oxidation spoilage and supplement vitamin nutrition.
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 |
| FEMA | 2109 | ASCORBIC ACID |
| 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 |
| pka | 4.04, 11.7(at 25℃) |
| form | powder |
| color | white to slightly yellow |
| PH | 3.59(1 mM solution);3.04(10 mM solution);2.53(100 mM solution); |
| Odor | Odorless |
| PH Range | 1 - 2.5 |
| biological source | synthetic (organic) |
| Odor Type | green |
| Optical Rotation | [α]25/D 19.0 to 23.0°, c = 10% in H2O |
| Water Solubility | 333 g/L (20 ºC) |
| Merck | 14830 |
| BRN | 84272 |
| BCS Class | 1 |
| Stability: | Stable. May be weakly light or air sensitive. Incompatible with oxidizing agents, alkalies, iron, copper. |
| InChIKey | CIWBSHSKHKDKBQ-JLAZNSOCSA-N |
| LogP | -1.85 |
| 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) |
| Absorption | cut-off at 306nm in H2O at 1M |
Product Application of Ascorbic Acid CAS#50-81-7
① Food Preservation: Applied as antioxidant E300 in meat products and beverages under Regulation EC 1333/2008, it can effectively prolong shelf-life by as much as 200 %.
② Pharmaceutical Use: Used as an excipient in effervescent tablets complying with EP 10.0 requirements, achieving bioavailability as high as 95 %.
③ Cosmetic Formulation: Works as a stabilizer in serum products (EC 1223), and supports collagen synthesis as demonstrated in-vitro.
④ Animal Feed: Deployed as a growth-promoting additive according to EC 1831/2003, which helps alleviate oxidative stress.
